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7
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1 /* vim:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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1788
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11 * diff.c: code for diff'ing two, three or four buffers.
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7
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12 */
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13
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14 #include "vim.h"
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15
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16 #if defined(FEAT_DIFF) || defined(PROTO)
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17
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18 static int diff_busy = FALSE; /* ex_diffgetput() is busy */
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19
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20 /* flags obtained from the 'diffopt' option */
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21 #define DIFF_FILLER 1 /* display filler lines */
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22 #define DIFF_ICASE 2 /* ignore case */
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23 #define DIFF_IWHITE 4 /* ignore change in white space */
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764
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24 #define DIFF_HORIZONTAL 8 /* horizontal splits */
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25 #define DIFF_VERTICAL 16 /* vertical splits */
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7
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26 static int diff_flags = DIFF_FILLER;
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27
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28 #define LBUFLEN 50 /* length of line in diff file */
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29
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30 static int diff_a_works = MAYBE; /* TRUE when "diff -a" works, FALSE when it
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31 doesn't work, MAYBE when not checked yet */
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32 #if defined(MSWIN) || defined(MSDOS)
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33 static int diff_bin_works = MAYBE; /* TRUE when "diff --binary" works, FALSE
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34 when it doesn't work, MAYBE when not
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35 checked yet */
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36 #endif
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37
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38 static int diff_buf_idx __ARGS((buf_T *buf));
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672
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39 static int diff_buf_idx_tp __ARGS((buf_T *buf, tabpage_T *tp));
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40 static void diff_mark_adjust_tp __ARGS((tabpage_T *tp, int idx, linenr_T line1, linenr_T line2, long amount, long amount_after));
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41 static void diff_check_unchanged __ARGS((tabpage_T *tp, diff_T *dp));
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42 static int diff_check_sanity __ARGS((tabpage_T *tp, diff_T *dp));
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7
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43 static void diff_redraw __ARGS((int dofold));
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44 static int diff_write __ARGS((buf_T *buf, char_u *fname));
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45 static void diff_file __ARGS((char_u *tmp_orig, char_u *tmp_new, char_u *tmp_diff));
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46 static int diff_equal_entry __ARGS((diff_T *dp, int idx1, int idx2));
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47 static int diff_cmp __ARGS((char_u *s1, char_u *s2));
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48 #ifdef FEAT_FOLDING
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49 static void diff_fold_update __ARGS((diff_T *dp, int skip_idx));
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50 #endif
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51 static void diff_read __ARGS((int idx_orig, int idx_new, char_u *fname));
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52 static void diff_copy_entry __ARGS((diff_T *dprev, diff_T *dp, int idx_orig, int idx_new));
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672
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53 static diff_T *diff_alloc_new __ARGS((tabpage_T *tp, diff_T *dprev, diff_T *dp));
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7
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54
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55 #ifndef USE_CR
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56 # define tag_fgets vim_fgets
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57 #endif
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58
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59 /*
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60 * Called when deleting or unloading a buffer: No longer make a diff with it.
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61 */
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62 void
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63 diff_buf_delete(buf)
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64 buf_T *buf;
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65 {
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66 int i;
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672
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67 tabpage_T *tp;
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7
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68
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672
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69 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
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7
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70 {
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672
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71 i = diff_buf_idx_tp(buf, tp);
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72 if (i != DB_COUNT)
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73 {
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74 tp->tp_diffbuf[i] = NULL;
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75 tp->tp_diff_invalid = TRUE;
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1761
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76 if (tp == curtab)
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77 diff_redraw(TRUE);
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672
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78 }
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7
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79 }
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80 }
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81
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82 /*
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16
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83 * Check if the current buffer should be added to or removed from the list of
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84 * diff buffers.
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85 */
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86 void
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87 diff_buf_adjust(win)
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88 win_T *win;
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89 {
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90 win_T *wp;
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672
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91 int i;
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16
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92
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93 if (!win->w_p_diff)
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94 {
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95 /* When there is no window showing a diff for this buffer, remove
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96 * it from the diffs. */
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97 for (wp = firstwin; wp != NULL; wp = wp->w_next)
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98 if (wp->w_buffer == win->w_buffer && wp->w_p_diff)
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99 break;
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100 if (wp == NULL)
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672
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101 {
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102 i = diff_buf_idx(win->w_buffer);
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103 if (i != DB_COUNT)
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104 {
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105 curtab->tp_diffbuf[i] = NULL;
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106 curtab->tp_diff_invalid = TRUE;
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1761
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107 diff_redraw(TRUE);
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672
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108 }
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109 }
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16
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110 }
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111 else
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112 diff_buf_add(win->w_buffer);
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113 }
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114
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115 /*
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7
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116 * Add a buffer to make diffs for.
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672
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117 * Call this when a new buffer is being edited in the current window where
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118 * 'diff' is set.
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1788
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119 * Marks the current buffer as being part of the diff and requiring updating.
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672
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120 * This must be done before any autocmd, because a command may use info
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121 * about the screen contents.
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7
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122 */
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123 void
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124 diff_buf_add(buf)
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125 buf_T *buf;
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126 {
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127 int i;
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128
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129 if (diff_buf_idx(buf) != DB_COUNT)
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130 return; /* It's already there. */
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131
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132 for (i = 0; i < DB_COUNT; ++i)
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672
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133 if (curtab->tp_diffbuf[i] == NULL)
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7
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134 {
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672
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135 curtab->tp_diffbuf[i] = buf;
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136 curtab->tp_diff_invalid = TRUE;
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1761
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137 diff_redraw(TRUE);
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7
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138 return;
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139 }
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140
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141 EMSGN(_("E96: Can not diff more than %ld buffers"), DB_COUNT);
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142 }
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143
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144 /*
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672
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145 * Find buffer "buf" in the list of diff buffers for the current tab page.
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7
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146 * Return its index or DB_COUNT if not found.
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147 */
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148 static int
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149 diff_buf_idx(buf)
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150 buf_T *buf;
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151 {
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152 int idx;
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153
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154 for (idx = 0; idx < DB_COUNT; ++idx)
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672
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155 if (curtab->tp_diffbuf[idx] == buf)
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156 break;
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157 return idx;
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158 }
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159
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160 /*
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161 * Find buffer "buf" in the list of diff buffers for tab page "tp".
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162 * Return its index or DB_COUNT if not found.
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163 */
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164 static int
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165 diff_buf_idx_tp(buf, tp)
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166 buf_T *buf;
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167 tabpage_T *tp;
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168 {
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169 int idx;
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170
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171 for (idx = 0; idx < DB_COUNT; ++idx)
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172 if (tp->tp_diffbuf[idx] == buf)
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7
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173 break;
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174 return idx;
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175 }
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176
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177 /*
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672
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178 * Mark the diff info involving buffer "buf" as invalid, it will be updated
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179 * when info is requested.
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7
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180 */
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181 void
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672
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182 diff_invalidate(buf)
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183 buf_T *buf;
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7
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184 {
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672
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185 tabpage_T *tp;
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186 int i;
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187
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188 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
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7
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189 {
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672
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190 i = diff_buf_idx_tp(buf, tp);
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191 if (i != DB_COUNT)
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192 {
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193 tp->tp_diff_invalid = TRUE;
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194 if (tp == curtab)
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195 diff_redraw(TRUE);
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196 }
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7
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197 }
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198 }
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199
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200 /*
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672
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201 * Called by mark_adjust(): update line numbers in "curbuf".
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7
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202 */
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203 void
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204 diff_mark_adjust(line1, line2, amount, amount_after)
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205 linenr_T line1;
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206 linenr_T line2;
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207 long amount;
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208 long amount_after;
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209 {
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672
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210 int idx;
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211 tabpage_T *tp;
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212
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213 /* Handle all tab pages that use the current buffer in a diff. */
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214 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
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215 {
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216 idx = diff_buf_idx_tp(curbuf, tp);
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217 if (idx != DB_COUNT)
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218 diff_mark_adjust_tp(tp, idx, line1, line2, amount, amount_after);
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219 }
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220 }
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221
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222 /*
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223 * Update line numbers in tab page "tp" for "curbuf" with index "idx".
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224 * This attempts to update the changes as much as possible:
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225 * When inserting/deleting lines outside of existing change blocks, create a
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226 * new change block and update the line numbers in following blocks.
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227 * When inserting/deleting lines in existing change blocks, update them.
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228 */
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229 static void
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230 diff_mark_adjust_tp(tp, idx, line1, line2, amount, amount_after)
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231 tabpage_T *tp;
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232 int idx;
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233 linenr_T line1;
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234 linenr_T line2;
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235 long amount;
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236 long amount_after;
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237 {
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7
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238 diff_T *dp;
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239 diff_T *dprev;
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240 diff_T *dnext;
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241 int i;
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242 int inserted, deleted;
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243 int n, off;
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244 linenr_T last;
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245 linenr_T lnum_deleted = line1; /* lnum of remaining deletion */
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246 int check_unchanged;
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247
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248 if (line2 == MAXLNUM)
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249 {
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250 /* mark_adjust(99, MAXLNUM, 9, 0): insert lines */
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251 inserted = amount;
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252 deleted = 0;
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253 }
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254 else if (amount_after > 0)
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255 {
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256 /* mark_adjust(99, 98, MAXLNUM, 9): a change that inserts lines*/
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257 inserted = amount_after;
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258 deleted = 0;
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259 }
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260 else
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261 {
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262 /* mark_adjust(98, 99, MAXLNUM, -2): delete lines */
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263 inserted = 0;
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264 deleted = -amount_after;
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265 }
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266
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267 dprev = NULL;
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672
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268 dp = tp->tp_first_diff;
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7
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269 for (;;)
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270 {
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271 /* If the change is after the previous diff block and before the next
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272 * diff block, thus not touching an existing change, create a new diff
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273 * block. Don't do this when ex_diffgetput() is busy. */
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274 if ((dp == NULL || dp->df_lnum[idx] - 1 > line2
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275 || (line2 == MAXLNUM && dp->df_lnum[idx] > line1))
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276 && (dprev == NULL
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277 || dprev->df_lnum[idx] + dprev->df_count[idx] < line1)
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278 && !diff_busy)
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279 {
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672
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280 dnext = diff_alloc_new(tp, dprev, dp);
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7
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281 if (dnext == NULL)
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282 return;
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283
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284 dnext->df_lnum[idx] = line1;
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285 dnext->df_count[idx] = inserted;
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286 for (i = 0; i < DB_COUNT; ++i)
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672
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287 if (tp->tp_diffbuf[i] != NULL && i != idx)
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7
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288 {
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289 if (dprev == NULL)
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290 dnext->df_lnum[i] = line1;
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291 else
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292 dnext->df_lnum[i] = line1
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293 + (dprev->df_lnum[i] + dprev->df_count[i])
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294 - (dprev->df_lnum[idx] + dprev->df_count[idx]);
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295 dnext->df_count[i] = deleted;
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296 }
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297 }
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298
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299 /* if at end of the list, quit */
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300 if (dp == NULL)
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301 break;
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302
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303 /*
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304 * Check for these situations:
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305 * 1 2 3
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306 * 1 2 3
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307 * line1 2 3 4 5
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308 * 2 3 4 5
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309 * 2 3 4 5
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310 * line2 2 3 4 5
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311 * 3 5 6
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312 * 3 5 6
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313 */
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314 /* compute last line of this change */
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315 last = dp->df_lnum[idx] + dp->df_count[idx] - 1;
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316
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317 /* 1. change completely above line1: nothing to do */
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318 if (last >= line1 - 1)
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319 {
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320 /* 6. change below line2: only adjust for amount_after; also when
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321 * "deleted" became zero when deleted all lines between two diffs */
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322 if (dp->df_lnum[idx] - (deleted + inserted != 0) > line2)
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323 {
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324 if (amount_after == 0)
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325 break; /* nothing left to change */
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326 dp->df_lnum[idx] += amount_after;
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327 }
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328 else
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329 {
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330 check_unchanged = FALSE;
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331
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332 /* 2. 3. 4. 5.: inserted/deleted lines touching this diff. */
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333 if (deleted > 0)
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334 {
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335 if (dp->df_lnum[idx] >= line1)
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336 {
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337 off = dp->df_lnum[idx] - lnum_deleted;
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338 if (last <= line2)
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339 {
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340 /* 4. delete all lines of diff */
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341 if (dp->df_next != NULL
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342 && dp->df_next->df_lnum[idx] - 1 <= line2)
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343 {
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344 /* delete continues in next diff, only do
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345 * lines until that one */
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346 n = dp->df_next->df_lnum[idx] - lnum_deleted;
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347 deleted -= n;
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348 n -= dp->df_count[idx];
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349 lnum_deleted = dp->df_next->df_lnum[idx];
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350 }
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351 else
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352 n = deleted - dp->df_count[idx];
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353 dp->df_count[idx] = 0;
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354 }
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355 else
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356 {
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357 /* 5. delete lines at or just before top of diff */
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358 n = off;
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359 dp->df_count[idx] -= line2 - dp->df_lnum[idx] + 1;
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360 check_unchanged = TRUE;
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361 }
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362 dp->df_lnum[idx] = line1;
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363 }
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364 else
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365 {
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366 off = 0;
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367 if (last < line2)
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368 {
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369 /* 2. delete at end of of diff */
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370 dp->df_count[idx] -= last - lnum_deleted + 1;
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371 if (dp->df_next != NULL
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372 && dp->df_next->df_lnum[idx] - 1 <= line2)
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373 {
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374 /* delete continues in next diff, only do
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375 * lines until that one */
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376 n = dp->df_next->df_lnum[idx] - 1 - last;
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377 deleted -= dp->df_next->df_lnum[idx]
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378 - lnum_deleted;
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379 lnum_deleted = dp->df_next->df_lnum[idx];
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380 }
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381 else
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382 n = line2 - last;
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383 check_unchanged = TRUE;
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384 }
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385 else
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386 {
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387 /* 3. delete lines inside the diff */
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388 n = 0;
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389 dp->df_count[idx] -= deleted;
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390 }
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391 }
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392
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393 for (i = 0; i < DB_COUNT; ++i)
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672
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394 if (tp->tp_diffbuf[i] != NULL && i != idx)
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7
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395 {
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396 dp->df_lnum[i] -= off;
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397 dp->df_count[i] += n;
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398 }
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399 }
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400 else
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401 {
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402 if (dp->df_lnum[idx] <= line1)
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403 {
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404 /* inserted lines somewhere in this diff */
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|
405 dp->df_count[idx] += inserted;
|
|
|
406 check_unchanged = TRUE;
|
|
|
407 }
|
|
|
408 else
|
|
|
409 /* inserted lines somewhere above this diff */
|
|
|
410 dp->df_lnum[idx] += inserted;
|
|
|
411 }
|
|
|
412
|
|
|
413 if (check_unchanged)
|
|
|
414 /* Check if inserted lines are equal, may reduce the
|
|
|
415 * size of the diff. TODO: also check for equal lines
|
|
|
416 * in the middle and perhaps split the block. */
|
|
672
|
417 diff_check_unchanged(tp, dp);
|
|
7
|
418 }
|
|
|
419 }
|
|
|
420
|
|
|
421 /* check if this block touches the previous one, may merge them. */
|
|
|
422 if (dprev != NULL && dprev->df_lnum[idx] + dprev->df_count[idx]
|
|
|
423 == dp->df_lnum[idx])
|
|
|
424 {
|
|
|
425 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
426 if (tp->tp_diffbuf[i] != NULL)
|
|
7
|
427 dprev->df_count[i] += dp->df_count[i];
|
|
|
428 dprev->df_next = dp->df_next;
|
|
|
429 vim_free(dp);
|
|
|
430 dp = dprev->df_next;
|
|
|
431 }
|
|
|
432 else
|
|
|
433 {
|
|
|
434 /* Advance to next entry. */
|
|
|
435 dprev = dp;
|
|
|
436 dp = dp->df_next;
|
|
|
437 }
|
|
|
438 }
|
|
|
439
|
|
|
440 dprev = NULL;
|
|
672
|
441 dp = tp->tp_first_diff;
|
|
7
|
442 while (dp != NULL)
|
|
|
443 {
|
|
|
444 /* All counts are zero, remove this entry. */
|
|
|
445 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
446 if (tp->tp_diffbuf[i] != NULL && dp->df_count[i] != 0)
|
|
7
|
447 break;
|
|
|
448 if (i == DB_COUNT)
|
|
|
449 {
|
|
|
450 dnext = dp->df_next;
|
|
|
451 vim_free(dp);
|
|
|
452 dp = dnext;
|
|
|
453 if (dprev == NULL)
|
|
672
|
454 tp->tp_first_diff = dnext;
|
|
7
|
455 else
|
|
|
456 dprev->df_next = dnext;
|
|
|
457 }
|
|
|
458 else
|
|
|
459 {
|
|
|
460 /* Advance to next entry. */
|
|
|
461 dprev = dp;
|
|
|
462 dp = dp->df_next;
|
|
|
463 }
|
|
|
464
|
|
|
465 }
|
|
672
|
466
|
|
|
467 if (tp == curtab)
|
|
|
468 {
|
|
|
469 diff_redraw(TRUE);
|
|
7
|
470
|
|
672
|
471 /* Need to recompute the scroll binding, may remove or add filler
|
|
|
472 * lines (e.g., when adding lines above w_topline). But it's slow when
|
|
|
473 * making many changes, postpone until redrawing. */
|
|
|
474 diff_need_scrollbind = TRUE;
|
|
|
475 }
|
|
7
|
476 }
|
|
|
477
|
|
|
478 /*
|
|
|
479 * Allocate a new diff block and link it between "dprev" and "dp".
|
|
|
480 */
|
|
|
481 static diff_T *
|
|
672
|
482 diff_alloc_new(tp, dprev, dp)
|
|
|
483 tabpage_T *tp;
|
|
7
|
484 diff_T *dprev;
|
|
|
485 diff_T *dp;
|
|
|
486 {
|
|
|
487 diff_T *dnew;
|
|
|
488
|
|
|
489 dnew = (diff_T *)alloc((unsigned)sizeof(diff_T));
|
|
|
490 if (dnew != NULL)
|
|
|
491 {
|
|
|
492 dnew->df_next = dp;
|
|
|
493 if (dprev == NULL)
|
|
672
|
494 tp->tp_first_diff = dnew;
|
|
7
|
495 else
|
|
|
496 dprev->df_next = dnew;
|
|
|
497 }
|
|
|
498 return dnew;
|
|
|
499 }
|
|
|
500
|
|
|
501 /*
|
|
|
502 * Check if the diff block "dp" can be made smaller for lines at the start and
|
|
|
503 * end that are equal. Called after inserting lines.
|
|
|
504 * This may result in a change where all buffers have zero lines, the caller
|
|
|
505 * must take care of removing it.
|
|
|
506 */
|
|
|
507 static void
|
|
672
|
508 diff_check_unchanged(tp, dp)
|
|
|
509 tabpage_T *tp;
|
|
7
|
510 diff_T *dp;
|
|
|
511 {
|
|
|
512 int i_org;
|
|
|
513 int i_new;
|
|
|
514 int off_org, off_new;
|
|
|
515 char_u *line_org;
|
|
|
516 int dir = FORWARD;
|
|
|
517
|
|
|
518 /* Find the first buffers, use it as the original, compare the other
|
|
|
519 * buffer lines against this one. */
|
|
|
520 for (i_org = 0; i_org < DB_COUNT; ++i_org)
|
|
672
|
521 if (tp->tp_diffbuf[i_org] != NULL)
|
|
7
|
522 break;
|
|
|
523 if (i_org == DB_COUNT) /* safety check */
|
|
|
524 return;
|
|
|
525
|
|
672
|
526 if (diff_check_sanity(tp, dp) == FAIL)
|
|
7
|
527 return;
|
|
|
528
|
|
|
529 /* First check lines at the top, then at the bottom. */
|
|
|
530 off_org = 0;
|
|
|
531 off_new = 0;
|
|
|
532 for (;;)
|
|
|
533 {
|
|
|
534 /* Repeat until a line is found which is different or the number of
|
|
|
535 * lines has become zero. */
|
|
|
536 while (dp->df_count[i_org] > 0)
|
|
|
537 {
|
|
|
538 /* Copy the line, the next ml_get() will invalidate it. */
|
|
|
539 if (dir == BACKWARD)
|
|
|
540 off_org = dp->df_count[i_org] - 1;
|
|
672
|
541 line_org = vim_strsave(ml_get_buf(tp->tp_diffbuf[i_org],
|
|
7
|
542 dp->df_lnum[i_org] + off_org, FALSE));
|
|
|
543 if (line_org == NULL)
|
|
|
544 return;
|
|
|
545 for (i_new = i_org + 1; i_new < DB_COUNT; ++i_new)
|
|
|
546 {
|
|
672
|
547 if (tp->tp_diffbuf[i_new] == NULL)
|
|
7
|
548 continue;
|
|
|
549 if (dir == BACKWARD)
|
|
|
550 off_new = dp->df_count[i_new] - 1;
|
|
|
551 /* if other buffer doesn't have this line, it was inserted */
|
|
|
552 if (off_new < 0 || off_new >= dp->df_count[i_new])
|
|
|
553 break;
|
|
672
|
554 if (diff_cmp(line_org, ml_get_buf(tp->tp_diffbuf[i_new],
|
|
7
|
555 dp->df_lnum[i_new] + off_new, FALSE)) != 0)
|
|
|
556 break;
|
|
|
557 }
|
|
|
558 vim_free(line_org);
|
|
|
559
|
|
|
560 /* Stop when a line isn't equal in all diff buffers. */
|
|
|
561 if (i_new != DB_COUNT)
|
|
|
562 break;
|
|
|
563
|
|
|
564 /* Line matched in all buffers, remove it from the diff. */
|
|
|
565 for (i_new = i_org; i_new < DB_COUNT; ++i_new)
|
|
672
|
566 if (tp->tp_diffbuf[i_new] != NULL)
|
|
7
|
567 {
|
|
|
568 if (dir == FORWARD)
|
|
|
569 ++dp->df_lnum[i_new];
|
|
|
570 --dp->df_count[i_new];
|
|
|
571 }
|
|
|
572 }
|
|
|
573 if (dir == BACKWARD)
|
|
|
574 break;
|
|
|
575 dir = BACKWARD;
|
|
|
576 }
|
|
|
577 }
|
|
|
578
|
|
|
579 /*
|
|
|
580 * Check if a diff block doesn't contain invalid line numbers.
|
|
|
581 * This can happen when the diff program returns invalid results.
|
|
|
582 */
|
|
|
583 static int
|
|
672
|
584 diff_check_sanity(tp, dp)
|
|
|
585 tabpage_T *tp;
|
|
7
|
586 diff_T *dp;
|
|
|
587 {
|
|
|
588 int i;
|
|
|
589
|
|
|
590 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
591 if (tp->tp_diffbuf[i] != NULL)
|
|
7
|
592 if (dp->df_lnum[i] + dp->df_count[i] - 1
|
|
672
|
593 > tp->tp_diffbuf[i]->b_ml.ml_line_count)
|
|
7
|
594 return FAIL;
|
|
|
595 return OK;
|
|
|
596 }
|
|
|
597
|
|
|
598 /*
|
|
672
|
599 * Mark all diff buffers in the current tab page for redraw.
|
|
7
|
600 */
|
|
|
601 static void
|
|
|
602 diff_redraw(dofold)
|
|
|
603 int dofold; /* also recompute the folds */
|
|
|
604 {
|
|
|
605 win_T *wp;
|
|
|
606 int n;
|
|
|
607
|
|
|
608 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
609 if (wp->w_p_diff)
|
|
|
610 {
|
|
738
|
611 redraw_win_later(wp, SOME_VALID);
|
|
7
|
612 #ifdef FEAT_FOLDING
|
|
|
613 if (dofold && foldmethodIsDiff(wp))
|
|
|
614 foldUpdateAll(wp);
|
|
|
615 #endif
|
|
|
616 /* A change may have made filler lines invalid, need to take care
|
|
|
617 * of that for other windows. */
|
|
|
618 if (wp != curwin && wp->w_topfill > 0)
|
|
|
619 {
|
|
|
620 n = diff_check(wp, wp->w_topline);
|
|
|
621 if (wp->w_topfill > n)
|
|
|
622 wp->w_topfill = (n < 0 ? 0 : n);
|
|
|
623 }
|
|
|
624 }
|
|
|
625 }
|
|
|
626
|
|
|
627 /*
|
|
|
628 * Write buffer "buf" to file "name".
|
|
|
629 * Always use 'fileformat' set to "unix".
|
|
|
630 * Return FAIL for failure
|
|
|
631 */
|
|
|
632 static int
|
|
|
633 diff_write(buf, fname)
|
|
|
634 buf_T *buf;
|
|
|
635 char_u *fname;
|
|
|
636 {
|
|
|
637 int r;
|
|
|
638 char_u *save_ff;
|
|
|
639
|
|
|
640 save_ff = buf->b_p_ff;
|
|
|
641 buf->b_p_ff = vim_strsave((char_u *)FF_UNIX);
|
|
|
642 r = buf_write(buf, fname, NULL, (linenr_T)1, buf->b_ml.ml_line_count,
|
|
|
643 NULL, FALSE, FALSE, FALSE, TRUE);
|
|
|
644 free_string_option(buf->b_p_ff);
|
|
|
645 buf->b_p_ff = save_ff;
|
|
|
646 return r;
|
|
|
647 }
|
|
|
648
|
|
|
649 /*
|
|
|
650 * Completely update the diffs for the buffers involved.
|
|
|
651 * This uses the ordinary "diff" command.
|
|
|
652 * The buffers are written to a file, also for unmodified buffers (the file
|
|
|
653 * could have been produced by autocommands, e.g. the netrw plugin).
|
|
|
654 */
|
|
|
655 void
|
|
|
656 ex_diffupdate(eap)
|
|
1876
|
657 exarg_T *eap UNUSED; /* can be NULL */
|
|
7
|
658 {
|
|
|
659 buf_T *buf;
|
|
|
660 int idx_orig;
|
|
|
661 int idx_new;
|
|
|
662 char_u *tmp_orig;
|
|
|
663 char_u *tmp_new;
|
|
|
664 char_u *tmp_diff;
|
|
|
665 FILE *fd;
|
|
|
666 int ok;
|
|
1757
|
667 int io_error = FALSE;
|
|
7
|
668
|
|
|
669 /* Delete all diffblocks. */
|
|
672
|
670 diff_clear(curtab);
|
|
|
671 curtab->tp_diff_invalid = FALSE;
|
|
7
|
672
|
|
|
673 /* Use the first buffer as the original text. */
|
|
|
674 for (idx_orig = 0; idx_orig < DB_COUNT; ++idx_orig)
|
|
672
|
675 if (curtab->tp_diffbuf[idx_orig] != NULL)
|
|
7
|
676 break;
|
|
|
677 if (idx_orig == DB_COUNT)
|
|
|
678 return;
|
|
|
679
|
|
|
680 /* Only need to do something when there is another buffer. */
|
|
|
681 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new)
|
|
672
|
682 if (curtab->tp_diffbuf[idx_new] != NULL)
|
|
7
|
683 break;
|
|
|
684 if (idx_new == DB_COUNT)
|
|
|
685 return;
|
|
|
686
|
|
|
687 /* We need three temp file names. */
|
|
|
688 tmp_orig = vim_tempname('o');
|
|
|
689 tmp_new = vim_tempname('n');
|
|
|
690 tmp_diff = vim_tempname('d');
|
|
|
691 if (tmp_orig == NULL || tmp_new == NULL || tmp_diff == NULL)
|
|
|
692 goto theend;
|
|
|
693
|
|
|
694 /*
|
|
|
695 * Do a quick test if "diff" really works. Otherwise it looks like there
|
|
|
696 * are no differences. Can't use the return value, it's non-zero when
|
|
|
697 * there are differences.
|
|
|
698 * May try twice, first with "-a" and then without.
|
|
|
699 */
|
|
|
700 for (;;)
|
|
|
701 {
|
|
|
702 ok = FALSE;
|
|
531
|
703 fd = mch_fopen((char *)tmp_orig, "w");
|
|
1757
|
704 if (fd == NULL)
|
|
|
705 io_error = TRUE;
|
|
|
706 else
|
|
7
|
707 {
|
|
1757
|
708 if (fwrite("line1\n", (size_t)6, (size_t)1, fd) != 1)
|
|
|
709 io_error = TRUE;
|
|
7
|
710 fclose(fd);
|
|
531
|
711 fd = mch_fopen((char *)tmp_new, "w");
|
|
1757
|
712 if (fd == NULL)
|
|
|
713 io_error = TRUE;
|
|
|
714 else
|
|
7
|
715 {
|
|
1757
|
716 if (fwrite("line2\n", (size_t)6, (size_t)1, fd) != 1)
|
|
|
717 io_error = TRUE;
|
|
7
|
718 fclose(fd);
|
|
|
719 diff_file(tmp_orig, tmp_new, tmp_diff);
|
|
531
|
720 fd = mch_fopen((char *)tmp_diff, "r");
|
|
1757
|
721 if (fd == NULL)
|
|
|
722 io_error = TRUE;
|
|
|
723 else
|
|
7
|
724 {
|
|
|
725 char_u linebuf[LBUFLEN];
|
|
|
726
|
|
|
727 for (;;)
|
|
|
728 {
|
|
|
729 /* There must be a line that contains "1c1". */
|
|
|
730 if (tag_fgets(linebuf, LBUFLEN, fd))
|
|
|
731 break;
|
|
|
732 if (STRNCMP(linebuf, "1c1", 3) == 0)
|
|
|
733 ok = TRUE;
|
|
|
734 }
|
|
|
735 fclose(fd);
|
|
|
736 }
|
|
|
737 mch_remove(tmp_diff);
|
|
|
738 mch_remove(tmp_new);
|
|
|
739 }
|
|
|
740 mch_remove(tmp_orig);
|
|
|
741 }
|
|
|
742
|
|
|
743 #ifdef FEAT_EVAL
|
|
|
744 /* When using 'diffexpr' break here. */
|
|
|
745 if (*p_dex != NUL)
|
|
|
746 break;
|
|
|
747 #endif
|
|
|
748
|
|
|
749 #if defined(MSWIN) || defined(MSDOS)
|
|
|
750 /* If the "-a" argument works, also check if "--binary" works. */
|
|
|
751 if (ok && diff_a_works == MAYBE && diff_bin_works == MAYBE)
|
|
|
752 {
|
|
|
753 diff_a_works = TRUE;
|
|
|
754 diff_bin_works = TRUE;
|
|
|
755 continue;
|
|
|
756 }
|
|
|
757 if (!ok && diff_a_works == TRUE && diff_bin_works == TRUE)
|
|
|
758 {
|
|
|
759 /* Tried --binary, but it failed. "-a" works though. */
|
|
|
760 diff_bin_works = FALSE;
|
|
|
761 ok = TRUE;
|
|
|
762 }
|
|
|
763 #endif
|
|
|
764
|
|
|
765 /* If we checked if "-a" works already, break here. */
|
|
|
766 if (diff_a_works != MAYBE)
|
|
|
767 break;
|
|
|
768 diff_a_works = ok;
|
|
|
769
|
|
|
770 /* If "-a" works break here, otherwise retry without "-a". */
|
|
|
771 if (ok)
|
|
|
772 break;
|
|
|
773 }
|
|
|
774 if (!ok)
|
|
|
775 {
|
|
1757
|
776 if (io_error)
|
|
|
777 EMSG(_("E810: Cannot read or write temp files"));
|
|
7
|
778 EMSG(_("E97: Cannot create diffs"));
|
|
|
779 diff_a_works = MAYBE;
|
|
|
780 #if defined(MSWIN) || defined(MSDOS)
|
|
|
781 diff_bin_works = MAYBE;
|
|
|
782 #endif
|
|
|
783 goto theend;
|
|
|
784 }
|
|
|
785
|
|
|
786 /* Write the first buffer to a tempfile. */
|
|
672
|
787 buf = curtab->tp_diffbuf[idx_orig];
|
|
7
|
788 if (diff_write(buf, tmp_orig) == FAIL)
|
|
|
789 goto theend;
|
|
|
790
|
|
|
791 /* Make a difference between the first buffer and every other. */
|
|
|
792 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new)
|
|
|
793 {
|
|
672
|
794 buf = curtab->tp_diffbuf[idx_new];
|
|
7
|
795 if (buf == NULL)
|
|
|
796 continue;
|
|
|
797 if (diff_write(buf, tmp_new) == FAIL)
|
|
|
798 continue;
|
|
|
799 diff_file(tmp_orig, tmp_new, tmp_diff);
|
|
|
800
|
|
|
801 /* Read the diff output and add each entry to the diff list. */
|
|
|
802 diff_read(idx_orig, idx_new, tmp_diff);
|
|
|
803 mch_remove(tmp_diff);
|
|
|
804 mch_remove(tmp_new);
|
|
|
805 }
|
|
|
806 mch_remove(tmp_orig);
|
|
|
807
|
|
1429
|
808 /* force updating cursor position on screen */
|
|
|
809 curwin->w_valid_cursor.lnum = 0;
|
|
|
810
|
|
7
|
811 diff_redraw(TRUE);
|
|
|
812
|
|
|
813 theend:
|
|
|
814 vim_free(tmp_orig);
|
|
|
815 vim_free(tmp_new);
|
|
|
816 vim_free(tmp_diff);
|
|
|
817 }
|
|
|
818
|
|
|
819 /*
|
|
|
820 * Make a diff between files "tmp_orig" and "tmp_new", results in "tmp_diff".
|
|
|
821 */
|
|
|
822 static void
|
|
|
823 diff_file(tmp_orig, tmp_new, tmp_diff)
|
|
|
824 char_u *tmp_orig;
|
|
|
825 char_u *tmp_new;
|
|
|
826 char_u *tmp_diff;
|
|
|
827 {
|
|
|
828 char_u *cmd;
|
|
1872
|
829 size_t len;
|
|
7
|
830
|
|
|
831 #ifdef FEAT_EVAL
|
|
|
832 if (*p_dex != NUL)
|
|
|
833 /* Use 'diffexpr' to generate the diff file. */
|
|
|
834 eval_diff(tmp_orig, tmp_new, tmp_diff);
|
|
|
835 else
|
|
|
836 #endif
|
|
|
837 {
|
|
1872
|
838 len = STRLEN(tmp_orig) + STRLEN(tmp_new)
|
|
|
839 + STRLEN(tmp_diff) + STRLEN(p_srr) + 27;
|
|
|
840 cmd = alloc((unsigned)len);
|
|
7
|
841 if (cmd != NULL)
|
|
|
842 {
|
|
193
|
843 /* We don't want $DIFF_OPTIONS to get in the way. */
|
|
|
844 if (getenv("DIFF_OPTIONS"))
|
|
|
845 vim_setenv((char_u *)"DIFF_OPTIONS", (char_u *)"");
|
|
|
846
|
|
7
|
847 /* Build the diff command and execute it. Always use -a, binary
|
|
|
848 * differences are of no use. Ignore errors, diff returns
|
|
|
849 * non-zero when differences have been found. */
|
|
1872
|
850 vim_snprintf((char *)cmd, len, "diff %s%s%s%s%s %s",
|
|
7
|
851 diff_a_works == FALSE ? "" : "-a ",
|
|
|
852 #if defined(MSWIN) || defined(MSDOS)
|
|
|
853 diff_bin_works == TRUE ? "--binary " : "",
|
|
|
854 #else
|
|
|
855 "",
|
|
|
856 #endif
|
|
|
857 (diff_flags & DIFF_IWHITE) ? "-b " : "",
|
|
|
858 (diff_flags & DIFF_ICASE) ? "-i " : "",
|
|
|
859 tmp_orig, tmp_new);
|
|
1872
|
860 append_redir(cmd, (int)len, p_srr, tmp_diff);
|
|
828
|
861 #ifdef FEAT_AUTOCMD
|
|
1410
|
862 block_autocmds(); /* Avoid ShellCmdPost stuff */
|
|
828
|
863 #endif
|
|
7
|
864 (void)call_shell(cmd, SHELL_FILTER|SHELL_SILENT|SHELL_DOOUT);
|
|
828
|
865 #ifdef FEAT_AUTOCMD
|
|
1410
|
866 unblock_autocmds();
|
|
828
|
867 #endif
|
|
7
|
868 vim_free(cmd);
|
|
|
869 }
|
|
|
870 }
|
|
|
871 }
|
|
|
872
|
|
|
873 /*
|
|
|
874 * Create a new version of a file from the current buffer and a diff file.
|
|
|
875 * The buffer is written to a file, also for unmodified buffers (the file
|
|
|
876 * could have been produced by autocommands, e.g. the netrw plugin).
|
|
|
877 */
|
|
|
878 void
|
|
|
879 ex_diffpatch(eap)
|
|
|
880 exarg_T *eap;
|
|
|
881 {
|
|
|
882 char_u *tmp_orig; /* name of original temp file */
|
|
|
883 char_u *tmp_new; /* name of patched temp file */
|
|
|
884 char_u *buf = NULL;
|
|
1872
|
885 size_t buflen;
|
|
7
|
886 win_T *old_curwin = curwin;
|
|
|
887 char_u *newname = NULL; /* name of patched file buffer */
|
|
|
888 #ifdef UNIX
|
|
|
889 char_u dirbuf[MAXPATHL];
|
|
|
890 char_u *fullname = NULL;
|
|
|
891 #endif
|
|
|
892 #ifdef FEAT_BROWSE
|
|
|
893 char_u *browseFile = NULL;
|
|
|
894 int browse_flag = cmdmod.browse;
|
|
|
895 #endif
|
|
|
896
|
|
|
897 #ifdef FEAT_BROWSE
|
|
|
898 if (cmdmod.browse)
|
|
|
899 {
|
|
28
|
900 browseFile = do_browse(0, (char_u *)_("Patch file"),
|
|
7
|
901 eap->arg, NULL, NULL, BROWSE_FILTER_ALL_FILES, NULL);
|
|
|
902 if (browseFile == NULL)
|
|
|
903 return; /* operation cancelled */
|
|
|
904 eap->arg = browseFile;
|
|
|
905 cmdmod.browse = FALSE; /* don't let do_ecmd() browse again */
|
|
|
906 }
|
|
|
907 #endif
|
|
|
908
|
|
|
909 /* We need two temp file names. */
|
|
|
910 tmp_orig = vim_tempname('o');
|
|
|
911 tmp_new = vim_tempname('n');
|
|
|
912 if (tmp_orig == NULL || tmp_new == NULL)
|
|
|
913 goto theend;
|
|
|
914
|
|
|
915 /* Write the current buffer to "tmp_orig". */
|
|
|
916 if (buf_write(curbuf, tmp_orig, NULL,
|
|
|
917 (linenr_T)1, curbuf->b_ml.ml_line_count,
|
|
|
918 NULL, FALSE, FALSE, FALSE, TRUE) == FAIL)
|
|
|
919 goto theend;
|
|
|
920
|
|
|
921 #ifdef UNIX
|
|
|
922 /* Get the absolute path of the patchfile, changing directory below. */
|
|
|
923 fullname = FullName_save(eap->arg, FALSE);
|
|
|
924 #endif
|
|
1872
|
925 buflen = STRLEN(tmp_orig) + (
|
|
7
|
926 # ifdef UNIX
|
|
|
927 fullname != NULL ? STRLEN(fullname) :
|
|
|
928 # endif
|
|
1872
|
929 STRLEN(eap->arg)) + STRLEN(tmp_new) + 16;
|
|
|
930 buf = alloc((unsigned)buflen);
|
|
7
|
931 if (buf == NULL)
|
|
|
932 goto theend;
|
|
|
933
|
|
|
934 #ifdef UNIX
|
|
1788
|
935 /* Temporarily chdir to /tmp, to avoid patching files in the current
|
|
7
|
936 * directory when the patch file contains more than one patch. When we
|
|
|
937 * have our own temp dir use that instead, it will be cleaned up when we
|
|
|
938 * exit (any .rej files created). Don't change directory if we can't
|
|
|
939 * return to the current. */
|
|
|
940 if (mch_dirname(dirbuf, MAXPATHL) != OK || mch_chdir((char *)dirbuf) != 0)
|
|
|
941 dirbuf[0] = NUL;
|
|
|
942 else
|
|
|
943 {
|
|
|
944 # ifdef TEMPDIRNAMES
|
|
|
945 if (vim_tempdir != NULL)
|
|
1757
|
946 ignored = mch_chdir((char *)vim_tempdir);
|
|
7
|
947 else
|
|
|
948 # endif
|
|
1757
|
949 ignored = mch_chdir("/tmp");
|
|
7
|
950 shorten_fnames(TRUE);
|
|
|
951 }
|
|
|
952 #endif
|
|
|
953
|
|
|
954 #ifdef FEAT_EVAL
|
|
|
955 if (*p_pex != NUL)
|
|
|
956 /* Use 'patchexpr' to generate the new file. */
|
|
|
957 eval_patch(tmp_orig,
|
|
|
958 # ifdef UNIX
|
|
|
959 fullname != NULL ? fullname :
|
|
|
960 # endif
|
|
|
961 eap->arg, tmp_new);
|
|
|
962 else
|
|
|
963 #endif
|
|
|
964 {
|
|
|
965 /* Build the patch command and execute it. Ignore errors. Switch to
|
|
|
966 * cooked mode to allow the user to respond to prompts. */
|
|
1872
|
967 vim_snprintf((char *)buf, buflen, "patch -o %s %s < \"%s\"",
|
|
|
968 tmp_new, tmp_orig,
|
|
7
|
969 # ifdef UNIX
|
|
|
970 fullname != NULL ? fullname :
|
|
|
971 # endif
|
|
|
972 eap->arg);
|
|
828
|
973 #ifdef FEAT_AUTOCMD
|
|
1410
|
974 block_autocmds(); /* Avoid ShellCmdPost stuff */
|
|
828
|
975 #endif
|
|
7
|
976 (void)call_shell(buf, SHELL_FILTER | SHELL_COOKED);
|
|
828
|
977 #ifdef FEAT_AUTOCMD
|
|
1410
|
978 unblock_autocmds();
|
|
828
|
979 #endif
|
|
7
|
980 }
|
|
|
981
|
|
|
982 #ifdef UNIX
|
|
|
983 if (dirbuf[0] != NUL)
|
|
|
984 {
|
|
|
985 if (mch_chdir((char *)dirbuf) != 0)
|
|
|
986 EMSG(_(e_prev_dir));
|
|
|
987 shorten_fnames(TRUE);
|
|
|
988 }
|
|
|
989 #endif
|
|
|
990
|
|
|
991 /* patch probably has written over the screen */
|
|
|
992 redraw_later(CLEAR);
|
|
|
993
|
|
|
994 /* Delete any .orig or .rej file created. */
|
|
|
995 STRCPY(buf, tmp_new);
|
|
|
996 STRCAT(buf, ".orig");
|
|
|
997 mch_remove(buf);
|
|
|
998 STRCPY(buf, tmp_new);
|
|
|
999 STRCAT(buf, ".rej");
|
|
|
1000 mch_remove(buf);
|
|
|
1001
|
|
|
1002 if (curbuf->b_fname != NULL)
|
|
|
1003 {
|
|
|
1004 newname = vim_strnsave(curbuf->b_fname,
|
|
|
1005 (int)(STRLEN(curbuf->b_fname) + 4));
|
|
|
1006 if (newname != NULL)
|
|
|
1007 STRCAT(newname, ".new");
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 #ifdef FEAT_GUI
|
|
|
1011 need_mouse_correct = TRUE;
|
|
|
1012 #endif
|
|
682
|
1013 /* don't use a new tab page, each tab page has its own diffs */
|
|
|
1014 cmdmod.tab = 0;
|
|
|
1015
|
|
764
|
1016 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL)
|
|
7
|
1017 {
|
|
|
1018 /* Pretend it was a ":split fname" command */
|
|
|
1019 eap->cmdidx = CMD_split;
|
|
|
1020 eap->arg = tmp_new;
|
|
|
1021 do_exedit(eap, old_curwin);
|
|
|
1022
|
|
|
1023 if (curwin != old_curwin) /* split must have worked */
|
|
|
1024 {
|
|
|
1025 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
1026 diff_win_options(curwin, TRUE);
|
|
|
1027 diff_win_options(old_curwin, TRUE);
|
|
|
1028
|
|
|
1029 if (newname != NULL)
|
|
|
1030 {
|
|
|
1031 /* do a ":file filename.new" on the patched buffer */
|
|
|
1032 eap->arg = newname;
|
|
|
1033 ex_file(eap);
|
|
|
1034
|
|
|
1035 #ifdef FEAT_AUTOCMD
|
|
|
1036 /* Do filetype detection with the new name. */
|
|
819
|
1037 if (au_has_group((char_u *)"filetypedetect"))
|
|
|
1038 do_cmdline_cmd((char_u *)":doau filetypedetect BufRead");
|
|
7
|
1039 #endif
|
|
|
1040 }
|
|
|
1041 }
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 theend:
|
|
|
1045 if (tmp_orig != NULL)
|
|
|
1046 mch_remove(tmp_orig);
|
|
|
1047 vim_free(tmp_orig);
|
|
|
1048 if (tmp_new != NULL)
|
|
|
1049 mch_remove(tmp_new);
|
|
|
1050 vim_free(tmp_new);
|
|
|
1051 vim_free(newname);
|
|
|
1052 vim_free(buf);
|
|
|
1053 #ifdef UNIX
|
|
|
1054 vim_free(fullname);
|
|
|
1055 #endif
|
|
|
1056 #ifdef FEAT_BROWSE
|
|
|
1057 vim_free(browseFile);
|
|
|
1058 cmdmod.browse = browse_flag;
|
|
|
1059 #endif
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 /*
|
|
|
1063 * Split the window and edit another file, setting options to show the diffs.
|
|
|
1064 */
|
|
|
1065 void
|
|
|
1066 ex_diffsplit(eap)
|
|
|
1067 exarg_T *eap;
|
|
|
1068 {
|
|
|
1069 win_T *old_curwin = curwin;
|
|
|
1070
|
|
|
1071 #ifdef FEAT_GUI
|
|
|
1072 need_mouse_correct = TRUE;
|
|
|
1073 #endif
|
|
682
|
1074 /* don't use a new tab page, each tab page has its own diffs */
|
|
|
1075 cmdmod.tab = 0;
|
|
|
1076
|
|
764
|
1077 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL)
|
|
7
|
1078 {
|
|
|
1079 /* Pretend it was a ":split fname" command */
|
|
|
1080 eap->cmdidx = CMD_split;
|
|
449
|
1081 curwin->w_p_diff = TRUE;
|
|
7
|
1082 do_exedit(eap, old_curwin);
|
|
|
1083
|
|
|
1084 if (curwin != old_curwin) /* split must have worked */
|
|
|
1085 {
|
|
|
1086 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
1087 diff_win_options(curwin, TRUE);
|
|
|
1088 diff_win_options(old_curwin, TRUE);
|
|
|
1089 }
|
|
|
1090 }
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 /*
|
|
|
1094 * Set options to show difs for the current window.
|
|
|
1095 */
|
|
|
1096 void
|
|
|
1097 ex_diffthis(eap)
|
|
1876
|
1098 exarg_T *eap UNUSED;
|
|
7
|
1099 {
|
|
|
1100 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
1101 diff_win_options(curwin, TRUE);
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 /*
|
|
|
1105 * Set options in window "wp" for diff mode.
|
|
|
1106 */
|
|
|
1107 void
|
|
|
1108 diff_win_options(wp, addbuf)
|
|
|
1109 win_T *wp;
|
|
|
1110 int addbuf; /* Add buffer to diff. */
|
|
|
1111 {
|
|
|
1112 wp->w_p_diff = TRUE;
|
|
|
1113 wp->w_p_scb = TRUE;
|
|
|
1114 wp->w_p_wrap = FALSE;
|
|
|
1115 # ifdef FEAT_FOLDING
|
|
|
1116 {
|
|
|
1117 win_T *old_curwin = curwin;
|
|
|
1118
|
|
|
1119 curwin = wp;
|
|
|
1120 curbuf = curwin->w_buffer;
|
|
|
1121 set_string_option_direct((char_u *)"fdm", -1, (char_u *)"diff",
|
|
694
|
1122 OPT_LOCAL|OPT_FREE, 0);
|
|
7
|
1123 curwin = old_curwin;
|
|
|
1124 curbuf = curwin->w_buffer;
|
|
764
|
1125 wp->w_p_fdc = diff_foldcolumn;
|
|
7
|
1126 wp->w_p_fen = TRUE;
|
|
|
1127 wp->w_p_fdl = 0;
|
|
|
1128 foldUpdateAll(wp);
|
|
16
|
1129 /* make sure topline is not halfway a fold */
|
|
|
1130 changed_window_setting_win(wp);
|
|
7
|
1131 }
|
|
|
1132 # endif
|
|
|
1133 #ifdef FEAT_SCROLLBIND
|
|
|
1134 if (vim_strchr(p_sbo, 'h') == NULL)
|
|
|
1135 do_cmdline_cmd((char_u *)"set sbo+=hor");
|
|
|
1136 #endif
|
|
|
1137
|
|
|
1138 if (addbuf)
|
|
|
1139 diff_buf_add(wp->w_buffer);
|
|
|
1140 redraw_win_later(wp, NOT_VALID);
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 /*
|
|
16
|
1144 * Set options not to show diffs. For the current window or all windows.
|
|
671
|
1145 * Only in the current tab page.
|
|
16
|
1146 */
|
|
|
1147 void
|
|
|
1148 ex_diffoff(eap)
|
|
|
1149 exarg_T *eap;
|
|
|
1150 {
|
|
|
1151 win_T *wp;
|
|
|
1152 win_T *old_curwin = curwin;
|
|
|
1153 #ifdef FEAT_SCROLLBIND
|
|
|
1154 int diffwin = FALSE;
|
|
|
1155 #endif
|
|
|
1156
|
|
|
1157 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
1158 {
|
|
1835
|
1159 if (wp == curwin || (eap->forceit && wp->w_p_diff))
|
|
16
|
1160 {
|
|
|
1161 /* Set 'diff', 'scrollbind' off and 'wrap' on. */
|
|
|
1162 wp->w_p_diff = FALSE;
|
|
|
1163 wp->w_p_scb = FALSE;
|
|
|
1164 wp->w_p_wrap = TRUE;
|
|
|
1165 #ifdef FEAT_FOLDING
|
|
|
1166 curwin = wp;
|
|
|
1167 curbuf = curwin->w_buffer;
|
|
|
1168 set_string_option_direct((char_u *)"fdm", -1,
|
|
694
|
1169 (char_u *)"manual", OPT_LOCAL|OPT_FREE, 0);
|
|
16
|
1170 curwin = old_curwin;
|
|
|
1171 curbuf = curwin->w_buffer;
|
|
|
1172 wp->w_p_fdc = 0;
|
|
|
1173 wp->w_p_fen = FALSE;
|
|
|
1174 wp->w_p_fdl = 0;
|
|
|
1175 foldUpdateAll(wp);
|
|
|
1176 /* make sure topline is not halfway a fold */
|
|
|
1177 changed_window_setting_win(wp);
|
|
|
1178 #endif
|
|
|
1179 diff_buf_adjust(wp);
|
|
|
1180 }
|
|
|
1181 #ifdef FEAT_SCROLLBIND
|
|
|
1182 diffwin |= wp->w_p_diff;
|
|
|
1183 #endif
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 #ifdef FEAT_SCROLLBIND
|
|
|
1187 /* Remove "hor" from from 'scrollopt' if there are no diff windows left. */
|
|
|
1188 if (!diffwin && vim_strchr(p_sbo, 'h') != NULL)
|
|
|
1189 do_cmdline_cmd((char_u *)"set sbo-=hor");
|
|
|
1190 #endif
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 /*
|
|
7
|
1194 * Read the diff output and add each entry to the diff list.
|
|
|
1195 */
|
|
|
1196 static void
|
|
|
1197 diff_read(idx_orig, idx_new, fname)
|
|
|
1198 int idx_orig; /* idx of original file */
|
|
|
1199 int idx_new; /* idx of new file */
|
|
|
1200 char_u *fname; /* name of diff output file */
|
|
|
1201 {
|
|
|
1202 FILE *fd;
|
|
|
1203 diff_T *dprev = NULL;
|
|
672
|
1204 diff_T *dp = curtab->tp_first_diff;
|
|
7
|
1205 diff_T *dn, *dpl;
|
|
|
1206 long f1, l1, f2, l2;
|
|
|
1207 char_u linebuf[LBUFLEN]; /* only need to hold the diff line */
|
|
|
1208 int difftype;
|
|
|
1209 char_u *p;
|
|
|
1210 long off;
|
|
|
1211 int i;
|
|
|
1212 linenr_T lnum_orig, lnum_new;
|
|
|
1213 long count_orig, count_new;
|
|
|
1214 int notset = TRUE; /* block "*dp" not set yet */
|
|
|
1215
|
|
531
|
1216 fd = mch_fopen((char *)fname, "r");
|
|
7
|
1217 if (fd == NULL)
|
|
|
1218 {
|
|
|
1219 EMSG(_("E98: Cannot read diff output"));
|
|
|
1220 return;
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 for (;;)
|
|
|
1224 {
|
|
|
1225 if (tag_fgets(linebuf, LBUFLEN, fd))
|
|
|
1226 break; /* end of file */
|
|
|
1227 if (!isdigit(*linebuf))
|
|
|
1228 continue; /* not the start of a diff block */
|
|
|
1229
|
|
|
1230 /* This line must be one of three formats:
|
|
|
1231 * {first}[,{last}]c{first}[,{last}]
|
|
|
1232 * {first}a{first}[,{last}]
|
|
|
1233 * {first}[,{last}]d{first}
|
|
|
1234 */
|
|
|
1235 p = linebuf;
|
|
|
1236 f1 = getdigits(&p);
|
|
|
1237 if (*p == ',')
|
|
|
1238 {
|
|
|
1239 ++p;
|
|
|
1240 l1 = getdigits(&p);
|
|
|
1241 }
|
|
|
1242 else
|
|
|
1243 l1 = f1;
|
|
|
1244 if (*p != 'a' && *p != 'c' && *p != 'd')
|
|
|
1245 continue; /* invalid diff format */
|
|
|
1246 difftype = *p++;
|
|
|
1247 f2 = getdigits(&p);
|
|
|
1248 if (*p == ',')
|
|
|
1249 {
|
|
|
1250 ++p;
|
|
|
1251 l2 = getdigits(&p);
|
|
|
1252 }
|
|
|
1253 else
|
|
|
1254 l2 = f2;
|
|
|
1255 if (l1 < f1 || l2 < f2)
|
|
|
1256 continue; /* invalid line range */
|
|
|
1257
|
|
|
1258 if (difftype == 'a')
|
|
|
1259 {
|
|
|
1260 lnum_orig = f1 + 1;
|
|
|
1261 count_orig = 0;
|
|
|
1262 }
|
|
|
1263 else
|
|
|
1264 {
|
|
|
1265 lnum_orig = f1;
|
|
|
1266 count_orig = l1 - f1 + 1;
|
|
|
1267 }
|
|
|
1268 if (difftype == 'd')
|
|
|
1269 {
|
|
|
1270 lnum_new = f2 + 1;
|
|
|
1271 count_new = 0;
|
|
|
1272 }
|
|
|
1273 else
|
|
|
1274 {
|
|
|
1275 lnum_new = f2;
|
|
|
1276 count_new = l2 - f2 + 1;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 /* Go over blocks before the change, for which orig and new are equal.
|
|
|
1280 * Copy blocks from orig to new. */
|
|
|
1281 while (dp != NULL
|
|
|
1282 && lnum_orig > dp->df_lnum[idx_orig] + dp->df_count[idx_orig])
|
|
|
1283 {
|
|
|
1284 if (notset)
|
|
|
1285 diff_copy_entry(dprev, dp, idx_orig, idx_new);
|
|
|
1286 dprev = dp;
|
|
|
1287 dp = dp->df_next;
|
|
|
1288 notset = TRUE;
|
|
|
1289 }
|
|
|
1290
|
|
|
1291 if (dp != NULL
|
|
|
1292 && lnum_orig <= dp->df_lnum[idx_orig] + dp->df_count[idx_orig]
|
|
|
1293 && lnum_orig + count_orig >= dp->df_lnum[idx_orig])
|
|
|
1294 {
|
|
|
1295 /* New block overlaps with existing block(s).
|
|
|
1296 * First find last block that overlaps. */
|
|
|
1297 for (dpl = dp; dpl->df_next != NULL; dpl = dpl->df_next)
|
|
|
1298 if (lnum_orig + count_orig < dpl->df_next->df_lnum[idx_orig])
|
|
|
1299 break;
|
|
|
1300
|
|
|
1301 /* If the newly found block starts before the old one, set the
|
|
|
1302 * start back a number of lines. */
|
|
|
1303 off = dp->df_lnum[idx_orig] - lnum_orig;
|
|
|
1304 if (off > 0)
|
|
|
1305 {
|
|
|
1306 for (i = idx_orig; i < idx_new; ++i)
|
|
672
|
1307 if (curtab->tp_diffbuf[i] != NULL)
|
|
7
|
1308 dp->df_lnum[i] -= off;
|
|
|
1309 dp->df_lnum[idx_new] = lnum_new;
|
|
|
1310 dp->df_count[idx_new] = count_new;
|
|
|
1311 }
|
|
|
1312 else if (notset)
|
|
|
1313 {
|
|
|
1314 /* new block inside existing one, adjust new block */
|
|
|
1315 dp->df_lnum[idx_new] = lnum_new + off;
|
|
|
1316 dp->df_count[idx_new] = count_new - off;
|
|
|
1317 }
|
|
|
1318 else
|
|
|
1319 /* second overlap of new block with existing block */
|
|
1519
|
1320 dp->df_count[idx_new] += count_new - count_orig
|
|
|
1321 + dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]
|
|
|
1322 - (dp->df_lnum[idx_orig] + dp->df_count[idx_orig]);
|
|
7
|
1323
|
|
|
1324 /* Adjust the size of the block to include all the lines to the
|
|
|
1325 * end of the existing block or the new diff, whatever ends last. */
|
|
|
1326 off = (lnum_orig + count_orig)
|
|
|
1327 - (dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]);
|
|
|
1328 if (off < 0)
|
|
|
1329 {
|
|
|
1330 /* new change ends in existing block, adjust the end if not
|
|
|
1331 * done already */
|
|
|
1332 if (notset)
|
|
|
1333 dp->df_count[idx_new] += -off;
|
|
|
1334 off = 0;
|
|
|
1335 }
|
|
1428
|
1336 for (i = idx_orig; i < idx_new; ++i)
|
|
672
|
1337 if (curtab->tp_diffbuf[i] != NULL)
|
|
7
|
1338 dp->df_count[i] = dpl->df_lnum[i] + dpl->df_count[i]
|
|
|
1339 - dp->df_lnum[i] + off;
|
|
|
1340
|
|
|
1341 /* Delete the diff blocks that have been merged into one. */
|
|
|
1342 dn = dp->df_next;
|
|
|
1343 dp->df_next = dpl->df_next;
|
|
|
1344 while (dn != dp->df_next)
|
|
|
1345 {
|
|
|
1346 dpl = dn->df_next;
|
|
|
1347 vim_free(dn);
|
|
|
1348 dn = dpl;
|
|
|
1349 }
|
|
|
1350 }
|
|
|
1351 else
|
|
|
1352 {
|
|
|
1353 /* Allocate a new diffblock. */
|
|
672
|
1354 dp = diff_alloc_new(curtab, dprev, dp);
|
|
7
|
1355 if (dp == NULL)
|
|
840
|
1356 goto done;
|
|
7
|
1357
|
|
|
1358 dp->df_lnum[idx_orig] = lnum_orig;
|
|
|
1359 dp->df_count[idx_orig] = count_orig;
|
|
|
1360 dp->df_lnum[idx_new] = lnum_new;
|
|
|
1361 dp->df_count[idx_new] = count_new;
|
|
|
1362
|
|
|
1363 /* Set values for other buffers, these must be equal to the
|
|
|
1364 * original buffer, otherwise there would have been a change
|
|
|
1365 * already. */
|
|
|
1366 for (i = idx_orig + 1; i < idx_new; ++i)
|
|
672
|
1367 if (curtab->tp_diffbuf[i] != NULL)
|
|
7
|
1368 diff_copy_entry(dprev, dp, idx_orig, i);
|
|
|
1369 }
|
|
|
1370 notset = FALSE; /* "*dp" has been set */
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 /* for remaining diff blocks orig and new are equal */
|
|
|
1374 while (dp != NULL)
|
|
|
1375 {
|
|
|
1376 if (notset)
|
|
|
1377 diff_copy_entry(dprev, dp, idx_orig, idx_new);
|
|
|
1378 dprev = dp;
|
|
|
1379 dp = dp->df_next;
|
|
|
1380 notset = TRUE;
|
|
|
1381 }
|
|
|
1382
|
|
840
|
1383 done:
|
|
7
|
1384 fclose(fd);
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 /*
|
|
|
1388 * Copy an entry at "dp" from "idx_orig" to "idx_new".
|
|
|
1389 */
|
|
|
1390 static void
|
|
|
1391 diff_copy_entry(dprev, dp, idx_orig, idx_new)
|
|
|
1392 diff_T *dprev;
|
|
|
1393 diff_T *dp;
|
|
|
1394 int idx_orig;
|
|
|
1395 int idx_new;
|
|
|
1396 {
|
|
|
1397 long off;
|
|
|
1398
|
|
|
1399 if (dprev == NULL)
|
|
|
1400 off = 0;
|
|
|
1401 else
|
|
|
1402 off = (dprev->df_lnum[idx_orig] + dprev->df_count[idx_orig])
|
|
|
1403 - (dprev->df_lnum[idx_new] + dprev->df_count[idx_new]);
|
|
|
1404 dp->df_lnum[idx_new] = dp->df_lnum[idx_orig] - off;
|
|
|
1405 dp->df_count[idx_new] = dp->df_count[idx_orig];
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 /*
|
|
672
|
1409 * Clear the list of diffblocks for tab page "tp".
|
|
7
|
1410 */
|
|
358
|
1411 void
|
|
672
|
1412 diff_clear(tp)
|
|
|
1413 tabpage_T *tp;
|
|
7
|
1414 {
|
|
|
1415 diff_T *p, *next_p;
|
|
|
1416
|
|
672
|
1417 for (p = tp->tp_first_diff; p != NULL; p = next_p)
|
|
7
|
1418 {
|
|
|
1419 next_p = p->df_next;
|
|
|
1420 vim_free(p);
|
|
|
1421 }
|
|
672
|
1422 tp->tp_first_diff = NULL;
|
|
7
|
1423 }
|
|
|
1424
|
|
|
1425 /*
|
|
|
1426 * Check diff status for line "lnum" in buffer "buf":
|
|
|
1427 * Returns 0 for nothing special
|
|
|
1428 * Returns -1 for a line that should be highlighted as changed.
|
|
|
1429 * Returns -2 for a line that should be highlighted as added/deleted.
|
|
|
1430 * Returns > 0 for inserting that many filler lines above it (never happens
|
|
|
1431 * when 'diffopt' doesn't contain "filler").
|
|
|
1432 * This should only be used for windows where 'diff' is set.
|
|
|
1433 */
|
|
|
1434 int
|
|
|
1435 diff_check(wp, lnum)
|
|
|
1436 win_T *wp;
|
|
|
1437 linenr_T lnum;
|
|
|
1438 {
|
|
672
|
1439 int idx; /* index in tp_diffbuf[] for this buffer */
|
|
7
|
1440 diff_T *dp;
|
|
|
1441 int maxcount;
|
|
|
1442 int i;
|
|
|
1443 buf_T *buf = wp->w_buffer;
|
|
|
1444 int cmp;
|
|
|
1445
|
|
672
|
1446 if (curtab->tp_diff_invalid)
|
|
7
|
1447 ex_diffupdate(NULL); /* update after a big change */
|
|
|
1448
|
|
672
|
1449 if (curtab->tp_first_diff == NULL || !wp->w_p_diff) /* no diffs at all */
|
|
7
|
1450 return 0;
|
|
|
1451
|
|
|
1452 /* safety check: "lnum" must be a buffer line */
|
|
|
1453 if (lnum < 1 || lnum > buf->b_ml.ml_line_count + 1)
|
|
|
1454 return 0;
|
|
|
1455
|
|
|
1456 idx = diff_buf_idx(buf);
|
|
|
1457 if (idx == DB_COUNT)
|
|
|
1458 return 0; /* no diffs for buffer "buf" */
|
|
|
1459
|
|
|
1460 #ifdef FEAT_FOLDING
|
|
|
1461 /* A closed fold never has filler lines. */
|
|
|
1462 if (hasFoldingWin(wp, lnum, NULL, NULL, TRUE, NULL))
|
|
|
1463 return 0;
|
|
|
1464 #endif
|
|
|
1465
|
|
|
1466 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
672
|
1467 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
|
|
7
|
1468 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1469 break;
|
|
|
1470 if (dp == NULL || lnum < dp->df_lnum[idx])
|
|
|
1471 return 0;
|
|
|
1472
|
|
|
1473 if (lnum < dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1474 {
|
|
|
1475 int zero = FALSE;
|
|
|
1476
|
|
|
1477 /* Changed or inserted line. If the other buffers have a count of
|
|
|
1478 * zero, the lines were inserted. If the other buffers have the same
|
|
|
1479 * count, check if the lines are identical. */
|
|
|
1480 cmp = FALSE;
|
|
|
1481 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
1482 if (i != idx && curtab->tp_diffbuf[i] != NULL)
|
|
7
|
1483 {
|
|
|
1484 if (dp->df_count[i] == 0)
|
|
|
1485 zero = TRUE;
|
|
|
1486 else
|
|
|
1487 {
|
|
|
1488 if (dp->df_count[i] != dp->df_count[idx])
|
|
|
1489 return -1; /* nr of lines changed. */
|
|
|
1490 cmp = TRUE;
|
|
|
1491 }
|
|
|
1492 }
|
|
|
1493 if (cmp)
|
|
|
1494 {
|
|
|
1495 /* Compare all lines. If they are equal the lines were inserted
|
|
|
1496 * in some buffers, deleted in others, but not changed. */
|
|
|
1497 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
1498 if (i != idx && curtab->tp_diffbuf[i] != NULL && dp->df_count[i] != 0)
|
|
7
|
1499 if (!diff_equal_entry(dp, idx, i))
|
|
|
1500 return -1;
|
|
|
1501 }
|
|
|
1502 /* If there is no buffer with zero lines then there is no difference
|
|
|
1503 * any longer. Happens when making a change (or undo) that removes
|
|
|
1504 * the difference. Can't remove the entry here, we might be halfway
|
|
|
1505 * updating the window. Just report the text as unchanged. Other
|
|
|
1506 * windows might still show the change though. */
|
|
|
1507 if (zero == FALSE)
|
|
|
1508 return 0;
|
|
|
1509 return -2;
|
|
|
1510 }
|
|
|
1511
|
|
|
1512 /* If 'diffopt' doesn't contain "filler", return 0. */
|
|
|
1513 if (!(diff_flags & DIFF_FILLER))
|
|
|
1514 return 0;
|
|
|
1515
|
|
|
1516 /* Insert filler lines above the line just below the change. Will return
|
|
|
1517 * 0 when this buf had the max count. */
|
|
|
1518 maxcount = 0;
|
|
|
1519 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
1520 if (curtab->tp_diffbuf[i] != NULL && dp->df_count[i] > maxcount)
|
|
7
|
1521 maxcount = dp->df_count[i];
|
|
|
1522 return maxcount - dp->df_count[idx];
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 /*
|
|
|
1526 * Compare two entries in diff "*dp" and return TRUE if they are equal.
|
|
|
1527 */
|
|
|
1528 static int
|
|
|
1529 diff_equal_entry(dp, idx1, idx2)
|
|
|
1530 diff_T *dp;
|
|
|
1531 int idx1;
|
|
|
1532 int idx2;
|
|
|
1533 {
|
|
|
1534 int i;
|
|
|
1535 char_u *line;
|
|
|
1536 int cmp;
|
|
|
1537
|
|
|
1538 if (dp->df_count[idx1] != dp->df_count[idx2])
|
|
|
1539 return FALSE;
|
|
672
|
1540 if (diff_check_sanity(curtab, dp) == FAIL)
|
|
7
|
1541 return FALSE;
|
|
|
1542 for (i = 0; i < dp->df_count[idx1]; ++i)
|
|
|
1543 {
|
|
672
|
1544 line = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx1],
|
|
7
|
1545 dp->df_lnum[idx1] + i, FALSE));
|
|
|
1546 if (line == NULL)
|
|
|
1547 return FALSE;
|
|
672
|
1548 cmp = diff_cmp(line, ml_get_buf(curtab->tp_diffbuf[idx2],
|
|
7
|
1549 dp->df_lnum[idx2] + i, FALSE));
|
|
|
1550 vim_free(line);
|
|
|
1551 if (cmp != 0)
|
|
|
1552 return FALSE;
|
|
|
1553 }
|
|
|
1554 return TRUE;
|
|
|
1555 }
|
|
|
1556
|
|
|
1557 /*
|
|
|
1558 * Compare strings "s1" and "s2" according to 'diffopt'.
|
|
|
1559 * Return non-zero when they are different.
|
|
|
1560 */
|
|
|
1561 static int
|
|
|
1562 diff_cmp(s1, s2)
|
|
|
1563 char_u *s1;
|
|
|
1564 char_u *s2;
|
|
|
1565 {
|
|
|
1566 char_u *p1, *p2;
|
|
|
1567 #ifdef FEAT_MBYTE
|
|
|
1568 int l;
|
|
|
1569 #endif
|
|
|
1570
|
|
|
1571 if ((diff_flags & (DIFF_ICASE | DIFF_IWHITE)) == 0)
|
|
|
1572 return STRCMP(s1, s2);
|
|
|
1573 if ((diff_flags & DIFF_ICASE) && !(diff_flags & DIFF_IWHITE))
|
|
|
1574 return MB_STRICMP(s1, s2);
|
|
|
1575
|
|
|
1576 /* Ignore white space changes and possibly ignore case. */
|
|
|
1577 p1 = s1;
|
|
|
1578 p2 = s2;
|
|
|
1579 while (*p1 != NUL && *p2 != NUL)
|
|
|
1580 {
|
|
|
1581 if (vim_iswhite(*p1) && vim_iswhite(*p2))
|
|
|
1582 {
|
|
|
1583 p1 = skipwhite(p1);
|
|
|
1584 p2 = skipwhite(p2);
|
|
|
1585 }
|
|
|
1586 else
|
|
|
1587 {
|
|
|
1588 #ifdef FEAT_MBYTE
|
|
474
|
1589 l = (*mb_ptr2len)(p1);
|
|
|
1590 if (l != (*mb_ptr2len)(p2))
|
|
7
|
1591 break;
|
|
|
1592 if (l > 1)
|
|
|
1593 {
|
|
|
1594 if (STRNCMP(p1, p2, l) != 0
|
|
|
1595 && (!enc_utf8
|
|
|
1596 || !(diff_flags & DIFF_ICASE)
|
|
|
1597 || utf_fold(utf_ptr2char(p1))
|
|
|
1598 != utf_fold(utf_ptr2char(p2))))
|
|
|
1599 break;
|
|
|
1600 p1 += l;
|
|
|
1601 p2 += l;
|
|
|
1602 }
|
|
|
1603 else
|
|
|
1604 #endif
|
|
|
1605 {
|
|
|
1606 if (*p1 != *p2 && (!(diff_flags & DIFF_ICASE)
|
|
|
1607 || TOLOWER_LOC(*p1) != TOLOWER_LOC(*p2)))
|
|
|
1608 break;
|
|
|
1609 ++p1;
|
|
|
1610 ++p2;
|
|
|
1611 }
|
|
|
1612 }
|
|
|
1613 }
|
|
|
1614
|
|
|
1615 /* Ignore trailing white space. */
|
|
|
1616 p1 = skipwhite(p1);
|
|
|
1617 p2 = skipwhite(p2);
|
|
|
1618 if (*p1 != NUL || *p2 != NUL)
|
|
|
1619 return 1;
|
|
|
1620 return 0;
|
|
|
1621 }
|
|
|
1622
|
|
|
1623 /*
|
|
|
1624 * Return the number of filler lines above "lnum".
|
|
|
1625 */
|
|
|
1626 int
|
|
|
1627 diff_check_fill(wp, lnum)
|
|
|
1628 win_T *wp;
|
|
|
1629 linenr_T lnum;
|
|
|
1630 {
|
|
|
1631 int n;
|
|
|
1632
|
|
|
1633 /* be quick when there are no filler lines */
|
|
|
1634 if (!(diff_flags & DIFF_FILLER))
|
|
|
1635 return 0;
|
|
|
1636 n = diff_check(wp, lnum);
|
|
|
1637 if (n <= 0)
|
|
|
1638 return 0;
|
|
|
1639 return n;
|
|
|
1640 }
|
|
|
1641
|
|
|
1642 /*
|
|
|
1643 * Set the topline of "towin" to match the position in "fromwin", so that they
|
|
|
1644 * show the same diff'ed lines.
|
|
|
1645 */
|
|
|
1646 void
|
|
|
1647 diff_set_topline(fromwin, towin)
|
|
|
1648 win_T *fromwin;
|
|
|
1649 win_T *towin;
|
|
|
1650 {
|
|
1519
|
1651 buf_T *frombuf = fromwin->w_buffer;
|
|
7
|
1652 linenr_T lnum = fromwin->w_topline;
|
|
1519
|
1653 int fromidx;
|
|
|
1654 int toidx;
|
|
7
|
1655 diff_T *dp;
|
|
1519
|
1656 int max_count;
|
|
7
|
1657 int i;
|
|
|
1658
|
|
1519
|
1659 fromidx = diff_buf_idx(frombuf);
|
|
|
1660 if (fromidx == DB_COUNT)
|
|
7
|
1661 return; /* safety check */
|
|
|
1662
|
|
672
|
1663 if (curtab->tp_diff_invalid)
|
|
7
|
1664 ex_diffupdate(NULL); /* update after a big change */
|
|
|
1665
|
|
|
1666 towin->w_topfill = 0;
|
|
|
1667
|
|
|
1668 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
672
|
1669 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
|
|
1519
|
1670 if (lnum <= dp->df_lnum[fromidx] + dp->df_count[fromidx])
|
|
7
|
1671 break;
|
|
|
1672 if (dp == NULL)
|
|
|
1673 {
|
|
|
1674 /* After last change, compute topline relative to end of file; no
|
|
|
1675 * filler lines. */
|
|
|
1676 towin->w_topline = towin->w_buffer->b_ml.ml_line_count
|
|
1519
|
1677 - (frombuf->b_ml.ml_line_count - lnum);
|
|
7
|
1678 }
|
|
|
1679 else
|
|
|
1680 {
|
|
|
1681 /* Find index for "towin". */
|
|
1519
|
1682 toidx = diff_buf_idx(towin->w_buffer);
|
|
|
1683 if (toidx == DB_COUNT)
|
|
7
|
1684 return; /* safety check */
|
|
|
1685
|
|
1519
|
1686 towin->w_topline = lnum + (dp->df_lnum[toidx] - dp->df_lnum[fromidx]);
|
|
|
1687 if (lnum >= dp->df_lnum[fromidx])
|
|
7
|
1688 {
|
|
1519
|
1689 /* Inside a change: compute filler lines. With three or more
|
|
|
1690 * buffers we need to know the largest count. */
|
|
|
1691 max_count = 0;
|
|
|
1692 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1693 if (curtab->tp_diffbuf[i] != NULL
|
|
|
1694 && max_count < dp->df_count[i])
|
|
|
1695 max_count = dp->df_count[i];
|
|
|
1696
|
|
|
1697 if (dp->df_count[toidx] == dp->df_count[fromidx])
|
|
|
1698 {
|
|
|
1699 /* same number of lines: use same filler count */
|
|
7
|
1700 towin->w_topfill = fromwin->w_topfill;
|
|
1519
|
1701 }
|
|
|
1702 else if (dp->df_count[toidx] > dp->df_count[fromidx])
|
|
7
|
1703 {
|
|
1519
|
1704 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx])
|
|
|
1705 {
|
|
|
1706 /* more lines in towin and fromwin doesn't show diff
|
|
|
1707 * lines, only filler lines */
|
|
|
1708 if (max_count - fromwin->w_topfill >= dp->df_count[toidx])
|
|
|
1709 {
|
|
|
1710 /* towin also only shows filler lines */
|
|
|
1711 towin->w_topline = dp->df_lnum[toidx]
|
|
|
1712 + dp->df_count[toidx];
|
|
|
1713 towin->w_topfill = fromwin->w_topfill;
|
|
|
1714 }
|
|
|
1715 else
|
|
|
1716 /* towin still has some diff lines to show */
|
|
|
1717 towin->w_topline = dp->df_lnum[toidx]
|
|
|
1718 + max_count - fromwin->w_topfill;
|
|
|
1719 }
|
|
7
|
1720 }
|
|
1519
|
1721 else if (towin->w_topline >= dp->df_lnum[toidx]
|
|
|
1722 + dp->df_count[toidx])
|
|
7
|
1723 {
|
|
1519
|
1724 /* less lines in towin and no diff lines to show: compute
|
|
|
1725 * filler lines */
|
|
|
1726 towin->w_topline = dp->df_lnum[toidx] + dp->df_count[toidx];
|
|
|
1727 if (diff_flags & DIFF_FILLER)
|
|
7
|
1728 {
|
|
1519
|
1729 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx])
|
|
|
1730 /* fromwin is also out of diff lines */
|
|
|
1731 towin->w_topfill = fromwin->w_topfill;
|
|
|
1732 else
|
|
|
1733 /* fromwin has some diff lines */
|
|
|
1734 towin->w_topfill = dp->df_lnum[fromidx]
|
|
|
1735 + max_count - lnum;
|
|
7
|
1736 }
|
|
|
1737 }
|
|
|
1738 }
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 /* safety check (if diff info gets outdated strange things may happen) */
|
|
|
1742 towin->w_botfill = FALSE;
|
|
|
1743 if (towin->w_topline > towin->w_buffer->b_ml.ml_line_count)
|
|
|
1744 {
|
|
|
1745 towin->w_topline = towin->w_buffer->b_ml.ml_line_count;
|
|
|
1746 towin->w_botfill = TRUE;
|
|
|
1747 }
|
|
|
1748 if (towin->w_topline < 1)
|
|
|
1749 {
|
|
|
1750 towin->w_topline = 1;
|
|
|
1751 towin->w_topfill = 0;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 /* When w_topline changes need to recompute w_botline and cursor position */
|
|
|
1755 invalidate_botline_win(towin);
|
|
|
1756 changed_line_abv_curs_win(towin);
|
|
|
1757
|
|
|
1758 check_topfill(towin, FALSE);
|
|
|
1759 #ifdef FEAT_FOLDING
|
|
|
1760 (void)hasFoldingWin(towin, towin->w_topline, &towin->w_topline,
|
|
|
1761 NULL, TRUE, NULL);
|
|
|
1762 #endif
|
|
|
1763 }
|
|
|
1764
|
|
|
1765 /*
|
|
|
1766 * This is called when 'diffopt' is changed.
|
|
|
1767 */
|
|
|
1768 int
|
|
|
1769 diffopt_changed()
|
|
|
1770 {
|
|
|
1771 char_u *p;
|
|
|
1772 int diff_context_new = 6;
|
|
|
1773 int diff_flags_new = 0;
|
|
764
|
1774 int diff_foldcolumn_new = 2;
|
|
672
|
1775 tabpage_T *tp;
|
|
7
|
1776
|
|
|
1777 p = p_dip;
|
|
|
1778 while (*p != NUL)
|
|
|
1779 {
|
|
|
1780 if (STRNCMP(p, "filler", 6) == 0)
|
|
|
1781 {
|
|
|
1782 p += 6;
|
|
|
1783 diff_flags_new |= DIFF_FILLER;
|
|
|
1784 }
|
|
|
1785 else if (STRNCMP(p, "context:", 8) == 0 && VIM_ISDIGIT(p[8]))
|
|
|
1786 {
|
|
|
1787 p += 8;
|
|
|
1788 diff_context_new = getdigits(&p);
|
|
|
1789 }
|
|
|
1790 else if (STRNCMP(p, "icase", 5) == 0)
|
|
|
1791 {
|
|
|
1792 p += 5;
|
|
|
1793 diff_flags_new |= DIFF_ICASE;
|
|
|
1794 }
|
|
|
1795 else if (STRNCMP(p, "iwhite", 6) == 0)
|
|
|
1796 {
|
|
|
1797 p += 6;
|
|
|
1798 diff_flags_new |= DIFF_IWHITE;
|
|
|
1799 }
|
|
764
|
1800 else if (STRNCMP(p, "horizontal", 10) == 0)
|
|
|
1801 {
|
|
|
1802 p += 10;
|
|
|
1803 diff_flags_new |= DIFF_HORIZONTAL;
|
|
|
1804 }
|
|
|
1805 else if (STRNCMP(p, "vertical", 8) == 0)
|
|
|
1806 {
|
|
|
1807 p += 8;
|
|
|
1808 diff_flags_new |= DIFF_VERTICAL;
|
|
|
1809 }
|
|
|
1810 else if (STRNCMP(p, "foldcolumn:", 11) == 0 && VIM_ISDIGIT(p[11]))
|
|
|
1811 {
|
|
|
1812 p += 11;
|
|
|
1813 diff_foldcolumn_new = getdigits(&p);
|
|
|
1814 }
|
|
7
|
1815 if (*p != ',' && *p != NUL)
|
|
|
1816 return FAIL;
|
|
|
1817 if (*p == ',')
|
|
|
1818 ++p;
|
|
|
1819 }
|
|
|
1820
|
|
764
|
1821 /* Can't have both "horizontal" and "vertical". */
|
|
|
1822 if ((diff_flags_new & DIFF_HORIZONTAL) && (diff_flags_new & DIFF_VERTICAL))
|
|
|
1823 return FAIL;
|
|
|
1824
|
|
7
|
1825 /* If "icase" or "iwhite" was added or removed, need to update the diff. */
|
|
|
1826 if (diff_flags != diff_flags_new)
|
|
672
|
1827 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
|
|
|
1828 tp->tp_diff_invalid = TRUE;
|
|
7
|
1829
|
|
|
1830 diff_flags = diff_flags_new;
|
|
|
1831 diff_context = diff_context_new;
|
|
764
|
1832 diff_foldcolumn = diff_foldcolumn_new;
|
|
7
|
1833
|
|
|
1834 diff_redraw(TRUE);
|
|
|
1835
|
|
|
1836 /* recompute the scroll binding with the new option value, may
|
|
|
1837 * remove or add filler lines */
|
|
|
1838 check_scrollbind((linenr_T)0, 0L);
|
|
|
1839
|
|
|
1840 return OK;
|
|
|
1841 }
|
|
|
1842
|
|
|
1843 /*
|
|
764
|
1844 * Return TRUE if 'diffopt' contains "horizontal".
|
|
|
1845 */
|
|
|
1846 int
|
|
|
1847 diffopt_horizontal()
|
|
|
1848 {
|
|
|
1849 return (diff_flags & DIFF_HORIZONTAL) != 0;
|
|
|
1850 }
|
|
|
1851
|
|
|
1852 /*
|
|
7
|
1853 * Find the difference within a changed line.
|
|
|
1854 * Returns TRUE if the line was added, no other buffer has it.
|
|
|
1855 */
|
|
|
1856 int
|
|
|
1857 diff_find_change(wp, lnum, startp, endp)
|
|
|
1858 win_T *wp;
|
|
|
1859 linenr_T lnum;
|
|
|
1860 int *startp; /* first char of the change */
|
|
|
1861 int *endp; /* last char of the change */
|
|
|
1862 {
|
|
|
1863 char_u *line_org;
|
|
|
1864 char_u *line_new;
|
|
|
1865 int i;
|
|
829
|
1866 int si_org, si_new;
|
|
|
1867 int ei_org, ei_new;
|
|
7
|
1868 diff_T *dp;
|
|
|
1869 int idx;
|
|
|
1870 int off;
|
|
|
1871 int added = TRUE;
|
|
|
1872
|
|
|
1873 /* Make a copy of the line, the next ml_get() will invalidate it. */
|
|
|
1874 line_org = vim_strsave(ml_get_buf(wp->w_buffer, lnum, FALSE));
|
|
|
1875 if (line_org == NULL)
|
|
|
1876 return FALSE;
|
|
|
1877
|
|
|
1878 idx = diff_buf_idx(wp->w_buffer);
|
|
|
1879 if (idx == DB_COUNT) /* cannot happen */
|
|
1074
|
1880 {
|
|
|
1881 vim_free(line_org);
|
|
7
|
1882 return FALSE;
|
|
1074
|
1883 }
|
|
7
|
1884
|
|
|
1885 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
672
|
1886 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
|
|
7
|
1887 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1888 break;
|
|
672
|
1889 if (dp == NULL || diff_check_sanity(curtab, dp) == FAIL)
|
|
1074
|
1890 {
|
|
|
1891 vim_free(line_org);
|
|
7
|
1892 return FALSE;
|
|
1074
|
1893 }
|
|
7
|
1894
|
|
|
1895 off = lnum - dp->df_lnum[idx];
|
|
|
1896
|
|
|
1897 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
1898 if (curtab->tp_diffbuf[i] != NULL && i != idx)
|
|
7
|
1899 {
|
|
|
1900 /* Skip lines that are not in the other change (filler lines). */
|
|
|
1901 if (off >= dp->df_count[i])
|
|
|
1902 continue;
|
|
|
1903 added = FALSE;
|
|
829
|
1904 line_new = ml_get_buf(curtab->tp_diffbuf[i],
|
|
|
1905 dp->df_lnum[i] + off, FALSE);
|
|
7
|
1906
|
|
|
1907 /* Search for start of difference */
|
|
829
|
1908 si_org = si_new = 0;
|
|
|
1909 while (line_org[si_org] != NUL)
|
|
|
1910 {
|
|
|
1911 if ((diff_flags & DIFF_IWHITE)
|
|
|
1912 && vim_iswhite(line_org[si_org])
|
|
|
1913 && vim_iswhite(line_new[si_new]))
|
|
|
1914 {
|
|
835
|
1915 si_org = (int)(skipwhite(line_org + si_org) - line_org);
|
|
|
1916 si_new = (int)(skipwhite(line_new + si_new) - line_new);
|
|
829
|
1917 }
|
|
|
1918 else
|
|
|
1919 {
|
|
|
1920 if (line_org[si_org] != line_new[si_new])
|
|
|
1921 break;
|
|
|
1922 ++si_org;
|
|
|
1923 ++si_new;
|
|
|
1924 }
|
|
|
1925 }
|
|
7
|
1926 #ifdef FEAT_MBYTE
|
|
|
1927 if (has_mbyte)
|
|
|
1928 {
|
|
|
1929 /* Move back to first byte of character in both lines (may
|
|
|
1930 * have "nn^" in line_org and "n^ in line_new). */
|
|
829
|
1931 si_org -= (*mb_head_off)(line_org, line_org + si_org);
|
|
|
1932 si_new -= (*mb_head_off)(line_new, line_new + si_new);
|
|
7
|
1933 }
|
|
|
1934 #endif
|
|
829
|
1935 if (*startp > si_org)
|
|
|
1936 *startp = si_org;
|
|
7
|
1937
|
|
|
1938 /* Search for end of difference, if any. */
|
|
829
|
1939 if (line_org[si_org] != NUL || line_new[si_new] != NUL)
|
|
7
|
1940 {
|
|
|
1941 ei_org = (int)STRLEN(line_org);
|
|
|
1942 ei_new = (int)STRLEN(line_new);
|
|
829
|
1943 while (ei_org >= *startp && ei_new >= si_new
|
|
|
1944 && ei_org >= 0 && ei_new >= 0)
|
|
7
|
1945 {
|
|
829
|
1946 if ((diff_flags & DIFF_IWHITE)
|
|
|
1947 && vim_iswhite(line_org[ei_org])
|
|
|
1948 && vim_iswhite(line_new[ei_new]))
|
|
|
1949 {
|
|
|
1950 while (ei_org >= *startp
|
|
|
1951 && vim_iswhite(line_org[ei_org]))
|
|
|
1952 --ei_org;
|
|
|
1953 while (ei_new >= si_new
|
|
|
1954 && vim_iswhite(line_new[ei_new]))
|
|
|
1955 --ei_new;
|
|
|
1956 }
|
|
|
1957 else
|
|
|
1958 {
|
|
|
1959 if (line_org[ei_org] != line_new[ei_new])
|
|
|
1960 break;
|
|
|
1961 --ei_org;
|
|
|
1962 --ei_new;
|
|
|
1963 }
|
|
7
|
1964 }
|
|
|
1965 if (*endp < ei_org)
|
|
|
1966 *endp = ei_org;
|
|
|
1967 }
|
|
|
1968 }
|
|
|
1969
|
|
|
1970 vim_free(line_org);
|
|
|
1971 return added;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 #if defined(FEAT_FOLDING) || defined(PROTO)
|
|
|
1975 /*
|
|
|
1976 * Return TRUE if line "lnum" is not close to a diff block, this line should
|
|
|
1977 * be in a fold.
|
|
|
1978 * Return FALSE if there are no diff blocks at all in this window.
|
|
|
1979 */
|
|
|
1980 int
|
|
|
1981 diff_infold(wp, lnum)
|
|
|
1982 win_T *wp;
|
|
|
1983 linenr_T lnum;
|
|
|
1984 {
|
|
|
1985 int i;
|
|
|
1986 int idx = -1;
|
|
|
1987 int other = FALSE;
|
|
|
1988 diff_T *dp;
|
|
|
1989
|
|
|
1990 /* Return if 'diff' isn't set. */
|
|
|
1991 if (!wp->w_p_diff)
|
|
|
1992 return FALSE;
|
|
|
1993
|
|
|
1994 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1995 {
|
|
672
|
1996 if (curtab->tp_diffbuf[i] == wp->w_buffer)
|
|
7
|
1997 idx = i;
|
|
672
|
1998 else if (curtab->tp_diffbuf[i] != NULL)
|
|
7
|
1999 other = TRUE;
|
|
|
2000 }
|
|
|
2001
|
|
|
2002 /* return here if there are no diffs in the window */
|
|
|
2003 if (idx == -1 || !other)
|
|
|
2004 return FALSE;
|
|
|
2005
|
|
672
|
2006 if (curtab->tp_diff_invalid)
|
|
7
|
2007 ex_diffupdate(NULL); /* update after a big change */
|
|
|
2008
|
|
|
2009 /* Return if there are no diff blocks. All lines will be folded. */
|
|
672
|
2010 if (curtab->tp_first_diff == NULL)
|
|
7
|
2011 return TRUE;
|
|
|
2012
|
|
672
|
2013 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
|
|
7
|
2014 {
|
|
|
2015 /* If this change is below the line there can't be any further match. */
|
|
|
2016 if (dp->df_lnum[idx] - diff_context > lnum)
|
|
|
2017 break;
|
|
|
2018 /* If this change ends before the line we have a match. */
|
|
|
2019 if (dp->df_lnum[idx] + dp->df_count[idx] + diff_context > lnum)
|
|
|
2020 return FALSE;
|
|
|
2021 }
|
|
|
2022 return TRUE;
|
|
|
2023 }
|
|
|
2024 #endif
|
|
|
2025
|
|
|
2026 /*
|
|
|
2027 * "dp" and "do" commands.
|
|
|
2028 */
|
|
|
2029 void
|
|
|
2030 nv_diffgetput(put)
|
|
|
2031 int put;
|
|
|
2032 {
|
|
|
2033 exarg_T ea;
|
|
|
2034
|
|
|
2035 ea.arg = (char_u *)"";
|
|
|
2036 if (put)
|
|
|
2037 ea.cmdidx = CMD_diffput;
|
|
|
2038 else
|
|
|
2039 ea.cmdidx = CMD_diffget;
|
|
|
2040 ea.addr_count = 0;
|
|
|
2041 ea.line1 = curwin->w_cursor.lnum;
|
|
|
2042 ea.line2 = curwin->w_cursor.lnum;
|
|
|
2043 ex_diffgetput(&ea);
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 /*
|
|
|
2047 * ":diffget"
|
|
|
2048 * ":diffput"
|
|
|
2049 */
|
|
|
2050 void
|
|
|
2051 ex_diffgetput(eap)
|
|
|
2052 exarg_T *eap;
|
|
|
2053 {
|
|
|
2054 linenr_T lnum;
|
|
|
2055 int count;
|
|
|
2056 linenr_T off = 0;
|
|
|
2057 diff_T *dp;
|
|
|
2058 diff_T *dprev;
|
|
|
2059 diff_T *dfree;
|
|
|
2060 int idx_cur;
|
|
|
2061 int idx_other;
|
|
|
2062 int idx_from;
|
|
|
2063 int idx_to;
|
|
|
2064 int i;
|
|
|
2065 int added;
|
|
|
2066 char_u *p;
|
|
|
2067 aco_save_T aco;
|
|
|
2068 buf_T *buf;
|
|
|
2069 int start_skip, end_skip;
|
|
|
2070 int new_count;
|
|
648
|
2071 int buf_empty;
|
|
1075
|
2072 int found_not_ma = FALSE;
|
|
7
|
2073
|
|
|
2074 /* Find the current buffer in the list of diff buffers. */
|
|
|
2075 idx_cur = diff_buf_idx(curbuf);
|
|
|
2076 if (idx_cur == DB_COUNT)
|
|
|
2077 {
|
|
|
2078 EMSG(_("E99: Current buffer is not in diff mode"));
|
|
|
2079 return;
|
|
|
2080 }
|
|
|
2081
|
|
|
2082 if (*eap->arg == NUL)
|
|
|
2083 {
|
|
|
2084 /* No argument: Find the other buffer in the list of diff buffers. */
|
|
|
2085 for (idx_other = 0; idx_other < DB_COUNT; ++idx_other)
|
|
672
|
2086 if (curtab->tp_diffbuf[idx_other] != curbuf
|
|
1075
|
2087 && curtab->tp_diffbuf[idx_other] != NULL)
|
|
|
2088 {
|
|
|
2089 if (eap->cmdidx != CMD_diffput
|
|
|
2090 || curtab->tp_diffbuf[idx_other]->b_p_ma)
|
|
|
2091 break;
|
|
|
2092 found_not_ma = TRUE;
|
|
|
2093 }
|
|
7
|
2094 if (idx_other == DB_COUNT)
|
|
|
2095 {
|
|
1075
|
2096 if (found_not_ma)
|
|
|
2097 EMSG(_("E793: No other buffer in diff mode is modifiable"));
|
|
|
2098 else
|
|
|
2099 EMSG(_("E100: No other buffer in diff mode"));
|
|
7
|
2100 return;
|
|
|
2101 }
|
|
|
2102
|
|
|
2103 /* Check that there isn't a third buffer in the list */
|
|
|
2104 for (i = idx_other + 1; i < DB_COUNT; ++i)
|
|
672
|
2105 if (curtab->tp_diffbuf[i] != curbuf
|
|
|
2106 && curtab->tp_diffbuf[i] != NULL
|
|
|
2107 && (eap->cmdidx != CMD_diffput || curtab->tp_diffbuf[i]->b_p_ma))
|
|
7
|
2108 {
|
|
|
2109 EMSG(_("E101: More than two buffers in diff mode, don't know which one to use"));
|
|
|
2110 return;
|
|
|
2111 }
|
|
|
2112 }
|
|
|
2113 else
|
|
|
2114 {
|
|
|
2115 /* Buffer number or pattern given. Ignore trailing white space. */
|
|
|
2116 p = eap->arg + STRLEN(eap->arg);
|
|
|
2117 while (p > eap->arg && vim_iswhite(p[-1]))
|
|
|
2118 --p;
|
|
|
2119 for (i = 0; vim_isdigit(eap->arg[i]) && eap->arg + i < p; ++i)
|
|
|
2120 ;
|
|
|
2121 if (eap->arg + i == p) /* digits only */
|
|
|
2122 i = atol((char *)eap->arg);
|
|
|
2123 else
|
|
|
2124 {
|
|
|
2125 i = buflist_findpat(eap->arg, p, FALSE, TRUE);
|
|
|
2126 if (i < 0)
|
|
|
2127 return; /* error message already given */
|
|
|
2128 }
|
|
|
2129 buf = buflist_findnr(i);
|
|
|
2130 if (buf == NULL)
|
|
|
2131 {
|
|
|
2132 EMSG2(_("E102: Can't find buffer \"%s\""), eap->arg);
|
|
|
2133 return;
|
|
|
2134 }
|
|
1788
|
2135 if (buf == curbuf)
|
|
|
2136 return; /* nothing to do */
|
|
7
|
2137 idx_other = diff_buf_idx(buf);
|
|
|
2138 if (idx_other == DB_COUNT)
|
|
|
2139 {
|
|
|
2140 EMSG2(_("E103: Buffer \"%s\" is not in diff mode"), eap->arg);
|
|
|
2141 return;
|
|
|
2142 }
|
|
|
2143 }
|
|
|
2144
|
|
|
2145 diff_busy = TRUE;
|
|
|
2146
|
|
|
2147 /* When no range given include the line above or below the cursor. */
|
|
|
2148 if (eap->addr_count == 0)
|
|
|
2149 {
|
|
|
2150 /* Make it possible that ":diffget" on the last line gets line below
|
|
|
2151 * the cursor line when there is no difference above the cursor. */
|
|
|
2152 if (eap->cmdidx == CMD_diffget
|
|
|
2153 && eap->line1 == curbuf->b_ml.ml_line_count
|
|
|
2154 && diff_check(curwin, eap->line1) == 0
|
|
|
2155 && (eap->line1 == 1 || diff_check(curwin, eap->line1 - 1) == 0))
|
|
|
2156 ++eap->line2;
|
|
|
2157 else if (eap->line1 > 0)
|
|
|
2158 --eap->line1;
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 if (eap->cmdidx == CMD_diffget)
|
|
|
2162 {
|
|
|
2163 idx_from = idx_other;
|
|
|
2164 idx_to = idx_cur;
|
|
|
2165 }
|
|
|
2166 else
|
|
|
2167 {
|
|
|
2168 idx_from = idx_cur;
|
|
|
2169 idx_to = idx_other;
|
|
|
2170 /* Need to make the other buffer the current buffer to be able to make
|
|
|
2171 * changes in it. */
|
|
|
2172 /* set curwin/curbuf to buf and save a few things */
|
|
672
|
2173 aucmd_prepbuf(&aco, curtab->tp_diffbuf[idx_other]);
|
|
7
|
2174 }
|
|
|
2175
|
|
819
|
2176 /* May give the warning for a changed buffer here, which can trigger the
|
|
|
2177 * FileChangedRO autocommand, which may do nasty things and mess
|
|
|
2178 * everything up. */
|
|
|
2179 if (!curbuf->b_changed)
|
|
|
2180 {
|
|
|
2181 change_warning(0);
|
|
|
2182 if (diff_buf_idx(curbuf) != idx_to)
|
|
|
2183 {
|
|
|
2184 EMSG(_("E787: Buffer changed unexpectedly"));
|
|
|
2185 return;
|
|
|
2186 }
|
|
|
2187 }
|
|
|
2188
|
|
7
|
2189 dprev = NULL;
|
|
672
|
2190 for (dp = curtab->tp_first_diff; dp != NULL; )
|
|
7
|
2191 {
|
|
|
2192 if (dp->df_lnum[idx_cur] > eap->line2 + off)
|
|
|
2193 break; /* past the range that was specified */
|
|
|
2194
|
|
|
2195 dfree = NULL;
|
|
|
2196 lnum = dp->df_lnum[idx_to];
|
|
|
2197 count = dp->df_count[idx_to];
|
|
|
2198 if (dp->df_lnum[idx_cur] + dp->df_count[idx_cur] > eap->line1 + off
|
|
|
2199 && u_save(lnum - 1, lnum + count) != FAIL)
|
|
|
2200 {
|
|
|
2201 /* Inside the specified range and saving for undo worked. */
|
|
|
2202 start_skip = 0;
|
|
|
2203 end_skip = 0;
|
|
|
2204 if (eap->addr_count > 0)
|
|
|
2205 {
|
|
|
2206 /* A range was specified: check if lines need to be skipped. */
|
|
|
2207 start_skip = eap->line1 + off - dp->df_lnum[idx_cur];
|
|
|
2208 if (start_skip > 0)
|
|
|
2209 {
|
|
|
2210 /* range starts below start of current diff block */
|
|
|
2211 if (start_skip > count)
|
|
|
2212 {
|
|
|
2213 lnum += count;
|
|
|
2214 count = 0;
|
|
|
2215 }
|
|
|
2216 else
|
|
|
2217 {
|
|
|
2218 count -= start_skip;
|
|
|
2219 lnum += start_skip;
|
|
|
2220 }
|
|
|
2221 }
|
|
|
2222 else
|
|
|
2223 start_skip = 0;
|
|
|
2224
|
|
|
2225 end_skip = dp->df_lnum[idx_cur] + dp->df_count[idx_cur] - 1
|
|
|
2226 - (eap->line2 + off);
|
|
|
2227 if (end_skip > 0)
|
|
|
2228 {
|
|
|
2229 /* range ends above end of current/from diff block */
|
|
|
2230 if (idx_cur == idx_from) /* :diffput */
|
|
|
2231 {
|
|
|
2232 i = dp->df_count[idx_cur] - start_skip - end_skip;
|
|
|
2233 if (count > i)
|
|
|
2234 count = i;
|
|
|
2235 }
|
|
|
2236 else /* :diffget */
|
|
|
2237 {
|
|
|
2238 count -= end_skip;
|
|
|
2239 end_skip = dp->df_count[idx_from] - start_skip - count;
|
|
|
2240 if (end_skip < 0)
|
|
|
2241 end_skip = 0;
|
|
|
2242 }
|
|
|
2243 }
|
|
|
2244 else
|
|
|
2245 end_skip = 0;
|
|
|
2246 }
|
|
|
2247
|
|
648
|
2248 buf_empty = FALSE;
|
|
7
|
2249 added = 0;
|
|
|
2250 for (i = 0; i < count; ++i)
|
|
|
2251 {
|
|
648
|
2252 /* remember deleting the last line of the buffer */
|
|
|
2253 buf_empty = curbuf->b_ml.ml_line_count == 1;
|
|
7
|
2254 ml_delete(lnum, FALSE);
|
|
|
2255 --added;
|
|
|
2256 }
|
|
|
2257 for (i = 0; i < dp->df_count[idx_from] - start_skip - end_skip; ++i)
|
|
|
2258 {
|
|
|
2259 linenr_T nr;
|
|
|
2260
|
|
|
2261 nr = dp->df_lnum[idx_from] + start_skip + i;
|
|
672
|
2262 if (nr > curtab->tp_diffbuf[idx_from]->b_ml.ml_line_count)
|
|
7
|
2263 break;
|
|
819
|
2264 p = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx_from],
|
|
|
2265 nr, FALSE));
|
|
7
|
2266 if (p != NULL)
|
|
|
2267 {
|
|
|
2268 ml_append(lnum + i - 1, p, 0, FALSE);
|
|
|
2269 vim_free(p);
|
|
|
2270 ++added;
|
|
648
|
2271 if (buf_empty && curbuf->b_ml.ml_line_count == 2)
|
|
|
2272 {
|
|
|
2273 /* Added the first line into an empty buffer, need to
|
|
|
2274 * delete the dummy empty line. */
|
|
|
2275 buf_empty = FALSE;
|
|
|
2276 ml_delete((linenr_T)2, FALSE);
|
|
|
2277 }
|
|
7
|
2278 }
|
|
|
2279 }
|
|
|
2280 new_count = dp->df_count[idx_to] + added;
|
|
|
2281 dp->df_count[idx_to] = new_count;
|
|
|
2282
|
|
|
2283 if (start_skip == 0 && end_skip == 0)
|
|
|
2284 {
|
|
|
2285 /* Check if there are any other buffers and if the diff is
|
|
|
2286 * equal in them. */
|
|
|
2287 for (i = 0; i < DB_COUNT; ++i)
|
|
819
|
2288 if (curtab->tp_diffbuf[i] != NULL && i != idx_from
|
|
|
2289 && i != idx_to
|
|
7
|
2290 && !diff_equal_entry(dp, idx_from, i))
|
|
|
2291 break;
|
|
|
2292 if (i == DB_COUNT)
|
|
|
2293 {
|
|
|
2294 /* delete the diff entry, the buffers are now equal here */
|
|
|
2295 dfree = dp;
|
|
|
2296 dp = dp->df_next;
|
|
|
2297 if (dprev == NULL)
|
|
672
|
2298 curtab->tp_first_diff = dp;
|
|
7
|
2299 else
|
|
|
2300 dprev->df_next = dp;
|
|
|
2301 }
|
|
|
2302 }
|
|
|
2303
|
|
|
2304 /* Adjust marks. This will change the following entries! */
|
|
|
2305 if (added != 0)
|
|
|
2306 {
|
|
|
2307 mark_adjust(lnum, lnum + count - 1, (long)MAXLNUM, (long)added);
|
|
|
2308 if (curwin->w_cursor.lnum >= lnum)
|
|
|
2309 {
|
|
|
2310 /* Adjust the cursor position if it's in/after the changed
|
|
|
2311 * lines. */
|
|
|
2312 if (curwin->w_cursor.lnum >= lnum + count)
|
|
|
2313 curwin->w_cursor.lnum += added;
|
|
|
2314 else if (added < 0)
|
|
|
2315 curwin->w_cursor.lnum = lnum;
|
|
|
2316 }
|
|
|
2317 }
|
|
|
2318 changed_lines(lnum, 0, lnum + count, (long)added);
|
|
|
2319
|
|
|
2320 if (dfree != NULL)
|
|
|
2321 {
|
|
|
2322 /* Diff is deleted, update folds in other windows. */
|
|
|
2323 #ifdef FEAT_FOLDING
|
|
|
2324 diff_fold_update(dfree, idx_to);
|
|
|
2325 #endif
|
|
|
2326 vim_free(dfree);
|
|
|
2327 }
|
|
|
2328 else
|
|
|
2329 /* mark_adjust() may have changed the count in a wrong way */
|
|
|
2330 dp->df_count[idx_to] = new_count;
|
|
|
2331
|
|
|
2332 /* When changing the current buffer, keep track of line numbers */
|
|
|
2333 if (idx_cur == idx_to)
|
|
|
2334 off += added;
|
|
|
2335 }
|
|
|
2336
|
|
|
2337 /* If before the range or not deleted, go to next diff. */
|
|
|
2338 if (dfree == NULL)
|
|
|
2339 {
|
|
|
2340 dprev = dp;
|
|
|
2341 dp = dp->df_next;
|
|
|
2342 }
|
|
|
2343 }
|
|
|
2344
|
|
|
2345 /* restore curwin/curbuf and a few other things */
|
|
|
2346 if (idx_other == idx_to)
|
|
|
2347 {
|
|
|
2348 /* Syncing undo only works for the current buffer, but we change
|
|
|
2349 * another buffer. Sync undo if the command was typed. This isn't
|
|
|
2350 * 100% right when ":diffput" is used in a function or mapping. */
|
|
|
2351 if (KeyTyped)
|
|
825
|
2352 u_sync(FALSE);
|
|
7
|
2353 aucmd_restbuf(&aco);
|
|
|
2354 }
|
|
|
2355
|
|
|
2356 diff_busy = FALSE;
|
|
|
2357
|
|
|
2358 /* Check that the cursor is on a valid character and update it's position.
|
|
|
2359 * When there were filler lines the topline has become invalid. */
|
|
|
2360 check_cursor();
|
|
|
2361 changed_line_abv_curs();
|
|
|
2362
|
|
|
2363 /* Also need to redraw the other buffers. */
|
|
|
2364 diff_redraw(FALSE);
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 #ifdef FEAT_FOLDING
|
|
|
2368 /*
|
|
|
2369 * Update folds for all diff buffers for entry "dp".
|
|
|
2370 * Skip buffer with index "skip_idx".
|
|
|
2371 * When there are no diffs, all folds are removed.
|
|
|
2372 */
|
|
|
2373 static void
|
|
|
2374 diff_fold_update(dp, skip_idx)
|
|
|
2375 diff_T *dp;
|
|
|
2376 int skip_idx;
|
|
|
2377 {
|
|
|
2378 int i;
|
|
|
2379 win_T *wp;
|
|
|
2380
|
|
|
2381 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
2382 for (i = 0; i < DB_COUNT; ++i)
|
|
672
|
2383 if (curtab->tp_diffbuf[i] == wp->w_buffer && i != skip_idx)
|
|
7
|
2384 foldUpdate(wp, dp->df_lnum[i],
|
|
|
2385 dp->df_lnum[i] + dp->df_count[i]);
|
|
|
2386 }
|
|
|
2387 #endif
|
|
|
2388
|
|
|
2389 /*
|
|
|
2390 * Return TRUE if buffer "buf" is in diff-mode.
|
|
|
2391 */
|
|
|
2392 int
|
|
|
2393 diff_mode_buf(buf)
|
|
|
2394 buf_T *buf;
|
|
|
2395 {
|
|
672
|
2396 tabpage_T *tp;
|
|
|
2397
|
|
|
2398 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
|
|
|
2399 if (diff_buf_idx_tp(buf, tp) != DB_COUNT)
|
|
|
2400 return TRUE;
|
|
|
2401 return FALSE;
|
|
7
|
2402 }
|
|
|
2403
|
|
|
2404 /*
|
|
|
2405 * Move "count" times in direction "dir" to the next diff block.
|
|
|
2406 * Return FAIL if there isn't such a diff block.
|
|
|
2407 */
|
|
|
2408 int
|
|
|
2409 diff_move_to(dir, count)
|
|
|
2410 int dir;
|
|
|
2411 long count;
|
|
|
2412 {
|
|
|
2413 int idx;
|
|
|
2414 linenr_T lnum = curwin->w_cursor.lnum;
|
|
|
2415 diff_T *dp;
|
|
|
2416
|
|
|
2417 idx = diff_buf_idx(curbuf);
|
|
672
|
2418 if (idx == DB_COUNT || curtab->tp_first_diff == NULL)
|
|
7
|
2419 return FAIL;
|
|
|
2420
|
|
672
|
2421 if (curtab->tp_diff_invalid)
|
|
7
|
2422 ex_diffupdate(NULL); /* update after a big change */
|
|
|
2423
|
|
672
|
2424 if (curtab->tp_first_diff == NULL) /* no diffs today */
|
|
7
|
2425 return FAIL;
|
|
|
2426
|
|
|
2427 while (--count >= 0)
|
|
|
2428 {
|
|
|
2429 /* Check if already before first diff. */
|
|
672
|
2430 if (dir == BACKWARD && lnum <= curtab->tp_first_diff->df_lnum[idx])
|
|
7
|
2431 break;
|
|
|
2432
|
|
672
|
2433 for (dp = curtab->tp_first_diff; ; dp = dp->df_next)
|
|
7
|
2434 {
|
|
|
2435 if (dp == NULL)
|
|
|
2436 break;
|
|
|
2437 if ((dir == FORWARD && lnum < dp->df_lnum[idx])
|
|
|
2438 || (dir == BACKWARD
|
|
|
2439 && (dp->df_next == NULL
|
|
|
2440 || lnum <= dp->df_next->df_lnum[idx])))
|
|
|
2441 {
|
|
|
2442 lnum = dp->df_lnum[idx];
|
|
|
2443 break;
|
|
|
2444 }
|
|
|
2445 }
|
|
|
2446 }
|
|
|
2447
|
|
|
2448 /* don't end up past the end of the file */
|
|
|
2449 if (lnum > curbuf->b_ml.ml_line_count)
|
|
|
2450 lnum = curbuf->b_ml.ml_line_count;
|
|
|
2451
|
|
|
2452 /* When the cursor didn't move at all we fail. */
|
|
|
2453 if (lnum == curwin->w_cursor.lnum)
|
|
|
2454 return FAIL;
|
|
|
2455
|
|
|
2456 setpcmark();
|
|
|
2457 curwin->w_cursor.lnum = lnum;
|
|
|
2458 curwin->w_cursor.col = 0;
|
|
|
2459
|
|
|
2460 return OK;
|
|
|
2461 }
|
|
|
2462
|
|
|
2463 #if defined(FEAT_FOLDING) || defined(PROTO)
|
|
|
2464 /*
|
|
|
2465 * For line "lnum" in the current window find the equivalent lnum in window
|
|
|
2466 * "wp", compensating for inserted/deleted lines.
|
|
|
2467 */
|
|
|
2468 linenr_T
|
|
|
2469 diff_lnum_win(lnum, wp)
|
|
|
2470 linenr_T lnum;
|
|
|
2471 win_T *wp;
|
|
|
2472 {
|
|
|
2473 diff_T *dp;
|
|
|
2474 int idx;
|
|
|
2475 int i;
|
|
|
2476 linenr_T n;
|
|
|
2477
|
|
|
2478 idx = diff_buf_idx(curbuf);
|
|
|
2479 if (idx == DB_COUNT) /* safety check */
|
|
|
2480 return (linenr_T)0;
|
|
|
2481
|
|
672
|
2482 if (curtab->tp_diff_invalid)
|
|
7
|
2483 ex_diffupdate(NULL); /* update after a big change */
|
|
|
2484
|
|
|
2485 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
672
|
2486 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
|
|
7
|
2487 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
2488 break;
|
|
|
2489
|
|
|
2490 /* When after the last change, compute relative to the last line number. */
|
|
|
2491 if (dp == NULL)
|
|
|
2492 return wp->w_buffer->b_ml.ml_line_count
|
|
|
2493 - (curbuf->b_ml.ml_line_count - lnum);
|
|
|
2494
|
|
|
2495 /* Find index for "wp". */
|
|
|
2496 i = diff_buf_idx(wp->w_buffer);
|
|
|
2497 if (i == DB_COUNT) /* safety check */
|
|
|
2498 return (linenr_T)0;
|
|
|
2499
|
|
|
2500 n = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]);
|
|
|
2501 if (n > dp->df_lnum[i] + dp->df_count[i])
|
|
|
2502 n = dp->df_lnum[i] + dp->df_count[i];
|
|
|
2503 return n;
|
|
|
2504 }
|
|
|
2505 #endif
|
|
|
2506
|
|
|
2507 #endif /* FEAT_DIFF */
|
