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7
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1 /* vi: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 #include "vim.h"
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11
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12 #ifdef FEAT_LINEBREAK
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13 static int win_chartabsize __ARGS((win_T *wp, char_u *p, colnr_T col));
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14 #endif
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15
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16 #ifdef FEAT_MBYTE
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17 static int win_nolbr_chartabsize __ARGS((win_T *wp, char_u *s, colnr_T col, int *headp));
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18 #endif
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19
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20 static int nr2hex __ARGS((int c));
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21
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22 static int chartab_initialized = FALSE;
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23
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24 /* b_chartab[] is an array of 32 bytes, each bit representing one of the
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25 * characters 0-255. */
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26 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7))
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27 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7))
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28 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7)))
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29
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30 /*
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31 * Fill chartab[]. Also fills curbuf->b_chartab[] with flags for keyword
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32 * characters for current buffer.
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33 *
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34 * Depends on the option settings 'iskeyword', 'isident', 'isfname',
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35 * 'isprint' and 'encoding'.
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36 *
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37 * The index in chartab[] depends on 'encoding':
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38 * - For non-multi-byte index with the byte (same as the character).
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39 * - For DBCS index with the first byte.
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40 * - For UTF-8 index with the character (when first byte is up to 0x80 it is
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41 * the same as the character, if the first byte is 0x80 and above it depends
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42 * on further bytes).
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43 *
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44 * The contents of chartab[]:
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45 * - The lower two bits, masked by CT_CELL_MASK, give the number of display
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46 * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80.
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47 * - CT_PRINT_CHAR bit is set when the character is printable (no need to
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48 * translate the character before displaying it). Note that only DBCS
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49 * characters can have 2 display cells and still be printable.
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50 * - CT_FNAME_CHAR bit is set when the character can be in a file name.
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51 * - CT_ID_CHAR bit is set when the character can be in an identifier.
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52 *
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53 * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an
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54 * error, OK otherwise.
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55 */
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56 int
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57 init_chartab()
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58 {
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59 return buf_init_chartab(curbuf, TRUE);
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60 }
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61
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62 int
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63 buf_init_chartab(buf, global)
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64 buf_T *buf;
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65 int global; /* FALSE: only set buf->b_chartab[] */
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66 {
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67 int c;
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68 int c2;
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69 char_u *p;
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70 int i;
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71 int tilde;
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72 int do_isalpha;
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73
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74 if (global)
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75 {
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76 /*
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77 * Set the default size for printable characters:
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78 * From <Space> to '~' is 1 (printable), others are 2 (not printable).
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79 * This also inits all 'isident' and 'isfname' flags to FALSE.
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80 *
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81 * EBCDIC: all chars below ' ' are not printable, all others are
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82 * printable.
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83 */
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84 c = 0;
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85 while (c < ' ')
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86 chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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87 #ifdef EBCDIC
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88 while (c < 255)
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89 #else
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90 while (c <= '~')
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91 #endif
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92 chartab[c++] = 1 + CT_PRINT_CHAR;
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93 #ifdef FEAT_FKMAP
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94 if (p_altkeymap)
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95 {
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96 while (c < YE)
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97 chartab[c++] = 1 + CT_PRINT_CHAR;
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98 }
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99 #endif
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100 while (c < 256)
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101 {
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102 #ifdef FEAT_MBYTE
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103 /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */
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104 if (enc_utf8 && c >= 0xa0)
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105 chartab[c++] = CT_PRINT_CHAR + 1;
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106 /* euc-jp characters starting with 0x8e are single width */
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107 else if (enc_dbcs == DBCS_JPNU && c == 0x8e)
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108 chartab[c++] = CT_PRINT_CHAR + 1;
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109 /* other double-byte chars can be printable AND double-width */
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110 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2)
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111 chartab[c++] = CT_PRINT_CHAR + 2;
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112 else
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113 #endif
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114 /* the rest is unprintable by default */
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115 chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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116 }
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117
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118 #ifdef FEAT_MBYTE
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119 /* Assume that every multi-byte char is a filename character. */
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120 for (c = 1; c < 256; ++c)
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121 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1)
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122 || (enc_dbcs == DBCS_JPNU && c == 0x8e)
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123 || (enc_utf8 && c >= 0xa0))
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124 chartab[c] |= CT_FNAME_CHAR;
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125 #endif
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126 }
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127
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128 /*
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129 * Init word char flags all to FALSE
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130 */
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131 vim_memset(buf->b_chartab, 0, (size_t)32);
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132 #ifdef FEAT_MBYTE
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227
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133 if (enc_dbcs != 0)
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134 for (c = 0; c < 256; ++c)
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135 {
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136 /* double-byte characters are probably word characters */
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137 if (MB_BYTE2LEN(c) == 2)
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138 SET_CHARTAB(buf, c);
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139 }
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7
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140 #endif
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141
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142 #ifdef FEAT_LISP
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143 /*
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144 * In lisp mode the '-' character is included in keywords.
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145 */
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146 if (buf->b_p_lisp)
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147 SET_CHARTAB(buf, '-');
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148 #endif
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149
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150 /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint'
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151 * options Each option is a list of characters, character numbers or
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152 * ranges, separated by commas, e.g.: "200-210,x,#-178,-"
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153 */
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154 for (i = global ? 0 : 3; i <= 3; ++i)
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155 {
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156 if (i == 0)
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157 p = p_isi; /* first round: 'isident' */
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158 else if (i == 1)
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159 p = p_isp; /* second round: 'isprint' */
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160 else if (i == 2)
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161 p = p_isf; /* third round: 'isfname' */
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162 else /* i == 3 */
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163 p = buf->b_p_isk; /* fourth round: 'iskeyword' */
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164
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165 while (*p)
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166 {
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167 tilde = FALSE;
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168 do_isalpha = FALSE;
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169 if (*p == '^' && p[1] != NUL)
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170 {
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171 tilde = TRUE;
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172 ++p;
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173 }
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174 if (VIM_ISDIGIT(*p))
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175 c = getdigits(&p);
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176 else
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177 c = *p++;
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178 c2 = -1;
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179 if (*p == '-' && p[1] != NUL)
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180 {
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181 ++p;
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182 if (VIM_ISDIGIT(*p))
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183 c2 = getdigits(&p);
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184 else
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185 c2 = *p++;
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186 }
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187 if (c <= 0 || (c2 < c && c2 != -1) || c2 >= 256
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188 || !(*p == NUL || *p == ','))
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189 return FAIL;
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190
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191 if (c2 == -1) /* not a range */
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192 {
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193 /*
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194 * A single '@' (not "@-@"):
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195 * Decide on letters being ID/printable/keyword chars with
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196 * standard function isalpha(). This takes care of locale for
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197 * single-byte characters).
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198 */
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199 if (c == '@')
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200 {
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201 do_isalpha = TRUE;
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202 c = 1;
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203 c2 = 255;
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204 }
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205 else
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206 c2 = c;
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207 }
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208 while (c <= c2)
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209 {
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210 if (!do_isalpha || isalpha(c)
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211 #ifdef FEAT_FKMAP
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212 || (p_altkeymap && (F_isalpha(c) || F_isdigit(c)))
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213 #endif
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214 )
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215 {
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216 if (i == 0) /* (re)set ID flag */
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217 {
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218 if (tilde)
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219 chartab[c] &= ~CT_ID_CHAR;
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220 else
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221 chartab[c] |= CT_ID_CHAR;
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222 }
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223 else if (i == 1) /* (re)set printable */
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224 {
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225 if ((c < ' '
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226 #ifndef EBCDIC
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227 || c > '~'
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228 #endif
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229 #ifdef FEAT_FKMAP
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230 || (p_altkeymap
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231 && (F_isalpha(c) || F_isdigit(c)))
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232 #endif
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233 )
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234 #ifdef FEAT_MBYTE
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235 /* For double-byte we keep the cell width, so
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236 * that we can detect it from the first byte. */
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237 && !(enc_dbcs && MB_BYTE2LEN(c) == 2)
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238 #endif
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239 )
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240 {
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241 if (tilde)
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242 {
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243 chartab[c] = (chartab[c] & ~CT_CELL_MASK)
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244 + ((dy_flags & DY_UHEX) ? 4 : 2);
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245 chartab[c] &= ~CT_PRINT_CHAR;
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246 }
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247 else
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248 {
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249 chartab[c] = (chartab[c] & ~CT_CELL_MASK) + 1;
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250 chartab[c] |= CT_PRINT_CHAR;
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251 }
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252 }
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253 }
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254 else if (i == 2) /* (re)set fname flag */
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255 {
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256 if (tilde)
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257 chartab[c] &= ~CT_FNAME_CHAR;
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258 else
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259 chartab[c] |= CT_FNAME_CHAR;
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260 }
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261 else /* i == 3 */ /* (re)set keyword flag */
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262 {
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263 if (tilde)
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264 RESET_CHARTAB(buf, c);
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265 else
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266 SET_CHARTAB(buf, c);
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267 }
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268 }
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269 ++c;
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270 }
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271 p = skip_to_option_part(p);
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272 }
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273 }
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274 chartab_initialized = TRUE;
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275 return OK;
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276 }
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277
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278 /*
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279 * Translate any special characters in buf[bufsize] in-place.
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280 * The result is a string with only printable characters, but if there is not
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281 * enough room, not all characters will be translated.
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282 */
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283 void
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284 trans_characters(buf, bufsize)
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285 char_u *buf;
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286 int bufsize;
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287 {
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288 int len; /* length of string needing translation */
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289 int room; /* room in buffer after string */
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290 char_u *trs; /* translated character */
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291 int trs_len; /* length of trs[] */
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292
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293 len = (int)STRLEN(buf);
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294 room = bufsize - len;
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295 while (*buf != 0)
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296 {
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297 # ifdef FEAT_MBYTE
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298 /* Assume a multi-byte character doesn't need translation. */
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474
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299 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1)
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7
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300 len -= trs_len;
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301 else
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302 # endif
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303 {
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304 trs = transchar_byte(*buf);
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305 trs_len = (int)STRLEN(trs);
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306 if (trs_len > 1)
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307 {
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308 room -= trs_len - 1;
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309 if (room <= 0)
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310 return;
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311 mch_memmove(buf + trs_len, buf + 1, (size_t)len);
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312 }
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313 mch_memmove(buf, trs, (size_t)trs_len);
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314 --len;
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315 }
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316 buf += trs_len;
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317 }
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318 }
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319
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1097
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320 #if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \
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321 || defined(PROTO)
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7
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322 /*
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323 * Translate a string into allocated memory, replacing special chars with
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324 * printable chars. Returns NULL when out of memory.
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325 */
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326 char_u *
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327 transstr(s)
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328 char_u *s;
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329 {
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330 char_u *res;
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331 char_u *p;
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332 #ifdef FEAT_MBYTE
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333 int l, len, c;
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334 char_u hexbuf[11];
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335 #endif
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336
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337 #ifdef FEAT_MBYTE
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338 if (has_mbyte)
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339 {
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340 /* Compute the length of the result, taking account of unprintable
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341 * multi-byte characters. */
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342 len = 0;
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343 p = s;
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344 while (*p != NUL)
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345 {
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474
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346 if ((l = (*mb_ptr2len)(p)) > 1)
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7
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347 {
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348 c = (*mb_ptr2char)(p);
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349 p += l;
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350 if (vim_isprintc(c))
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351 len += l;
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352 else
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353 {
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354 transchar_hex(hexbuf, c);
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835
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355 len += (int)STRLEN(hexbuf);
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7
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356 }
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357 }
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358 else
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359 {
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360 l = byte2cells(*p++);
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361 if (l > 0)
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362 len += l;
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363 else
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364 len += 4; /* illegal byte sequence */
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365 }
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366 }
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367 res = alloc((unsigned)(len + 1));
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368 }
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369 else
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370 #endif
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371 res = alloc((unsigned)(vim_strsize(s) + 1));
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372 if (res != NULL)
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373 {
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374 *res = NUL;
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375 p = s;
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376 while (*p != NUL)
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377 {
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378 #ifdef FEAT_MBYTE
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474
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379 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
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7
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380 {
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381 c = (*mb_ptr2char)(p);
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382 if (vim_isprintc(c))
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383 STRNCAT(res, p, l); /* append printable multi-byte char */
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384 else
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385 transchar_hex(res + STRLEN(res), c);
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386 p += l;
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387 }
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388 else
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389 #endif
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390 STRCAT(res, transchar_byte(*p++));
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391 }
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392 }
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393 return res;
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394 }
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395 #endif
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396
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397 #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO)
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398 /*
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221
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399 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the
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400 * current locale.
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130
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401 * When "buf" is NULL returns an allocated string (NULL for out-of-memory).
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402 * Otherwise puts the result in "buf[buflen]".
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7
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403 */
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404 char_u *
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130
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405 str_foldcase(str, orglen, buf, buflen)
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7
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406 char_u *str;
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130
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407 int orglen;
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408 char_u *buf;
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409 int buflen;
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7
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410 {
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411 garray_T ga;
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412 int i;
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130
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413 int len = orglen;
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7
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414
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|
|
415 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i]
|
|
|
416 #define GA_PTR(i) ((char_u *)ga.ga_data + i)
|
|
130
|
417 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i])
|
|
|
418 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i)
|
|
7
|
419
|
|
130
|
420 /* Copy "str" into "buf" or allocated memory, unmodified. */
|
|
|
421 if (buf == NULL)
|
|
|
422 {
|
|
|
423 ga_init2(&ga, 1, 10);
|
|
|
424 if (ga_grow(&ga, len + 1) == FAIL)
|
|
|
425 return NULL;
|
|
|
426 mch_memmove(ga.ga_data, str, (size_t)len);
|
|
|
427 ga.ga_len = len;
|
|
|
428 }
|
|
|
429 else
|
|
|
430 {
|
|
|
431 if (len >= buflen) /* Ugly! */
|
|
|
432 len = buflen - 1;
|
|
|
433 mch_memmove(buf, str, (size_t)len);
|
|
|
434 }
|
|
|
435 if (buf == NULL)
|
|
|
436 GA_CHAR(len) = NUL;
|
|
|
437 else
|
|
|
438 buf[len] = NUL;
|
|
7
|
439
|
|
|
440 /* Make each character lower case. */
|
|
|
441 i = 0;
|
|
130
|
442 while (STR_CHAR(i) != NUL)
|
|
7
|
443 {
|
|
|
444 #ifdef FEAT_MBYTE
|
|
130
|
445 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1))
|
|
7
|
446 {
|
|
|
447 if (enc_utf8)
|
|
|
448 {
|
|
|
449 int c, lc;
|
|
|
450
|
|
130
|
451 c = utf_ptr2char(STR_PTR(i));
|
|
7
|
452 lc = utf_tolower(c);
|
|
|
453 if (c != lc)
|
|
|
454 {
|
|
|
455 int ol = utf_char2len(c);
|
|
|
456 int nl = utf_char2len(lc);
|
|
|
457
|
|
|
458 /* If the byte length changes need to shift the following
|
|
|
459 * characters forward or backward. */
|
|
|
460 if (ol != nl)
|
|
|
461 {
|
|
|
462 if (nl > ol)
|
|
130
|
463 {
|
|
|
464 if (buf == NULL ? ga_grow(&ga, nl - ol + 1) == FAIL
|
|
|
465 : len + nl - ol >= buflen)
|
|
7
|
466 {
|
|
|
467 /* out of memory, keep old char */
|
|
|
468 lc = c;
|
|
|
469 nl = ol;
|
|
|
470 }
|
|
130
|
471 }
|
|
7
|
472 if (ol != nl)
|
|
|
473 {
|
|
130
|
474 if (buf == NULL)
|
|
|
475 {
|
|
|
476 mch_memmove(GA_PTR(i) + nl, GA_PTR(i) + ol,
|
|
7
|
477 STRLEN(GA_PTR(i) + ol) + 1);
|
|
130
|
478 ga.ga_len += nl - ol;
|
|
|
479 }
|
|
|
480 else
|
|
|
481 {
|
|
|
482 mch_memmove(buf + i + nl, buf + i + ol,
|
|
|
483 STRLEN(buf + i + ol) + 1);
|
|
|
484 len += nl - ol;
|
|
|
485 }
|
|
7
|
486 }
|
|
|
487 }
|
|
130
|
488 (void)utf_char2bytes(lc, STR_PTR(i));
|
|
7
|
489 }
|
|
|
490 }
|
|
|
491 /* skip to next multi-byte char */
|
|
474
|
492 i += (*mb_ptr2len)(STR_PTR(i));
|
|
7
|
493 }
|
|
|
494 else
|
|
|
495 #endif
|
|
|
496 {
|
|
130
|
497 if (buf == NULL)
|
|
|
498 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
|
|
|
499 else
|
|
|
500 buf[i] = TOLOWER_LOC(buf[i]);
|
|
7
|
501 ++i;
|
|
|
502 }
|
|
|
503 }
|
|
|
504
|
|
130
|
505 if (buf == NULL)
|
|
|
506 return (char_u *)ga.ga_data;
|
|
|
507 return buf;
|
|
7
|
508 }
|
|
|
509 #endif
|
|
|
510
|
|
|
511 /*
|
|
|
512 * Catch 22: chartab[] can't be initialized before the options are
|
|
|
513 * initialized, and initializing options may cause transchar() to be called!
|
|
|
514 * When chartab_initialized == FALSE don't use chartab[].
|
|
|
515 * Does NOT work for multi-byte characters, c must be <= 255.
|
|
|
516 * Also doesn't work for the first byte of a multi-byte, "c" must be a
|
|
|
517 * character!
|
|
|
518 */
|
|
|
519 static char_u transchar_buf[7];
|
|
|
520
|
|
|
521 char_u *
|
|
|
522 transchar(c)
|
|
|
523 int c;
|
|
|
524 {
|
|
|
525 int i;
|
|
|
526
|
|
|
527 i = 0;
|
|
|
528 if (IS_SPECIAL(c)) /* special key code, display as ~@ char */
|
|
|
529 {
|
|
|
530 transchar_buf[0] = '~';
|
|
|
531 transchar_buf[1] = '@';
|
|
|
532 i = 2;
|
|
|
533 c = K_SECOND(c);
|
|
|
534 }
|
|
|
535
|
|
|
536 if ((!chartab_initialized && (
|
|
|
537 #ifdef EBCDIC
|
|
|
538 (c >= 64 && c < 255)
|
|
|
539 #else
|
|
|
540 (c >= ' ' && c <= '~')
|
|
|
541 #endif
|
|
|
542 #ifdef FEAT_FKMAP
|
|
|
543 || F_ischar(c)
|
|
|
544 #endif
|
|
|
545 )) || (c < 256 && vim_isprintc_strict(c)))
|
|
|
546 {
|
|
|
547 /* printable character */
|
|
|
548 transchar_buf[i] = c;
|
|
|
549 transchar_buf[i + 1] = NUL;
|
|
|
550 }
|
|
|
551 else
|
|
|
552 transchar_nonprint(transchar_buf + i, c);
|
|
|
553 return transchar_buf;
|
|
|
554 }
|
|
|
555
|
|
|
556 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
|
557 /*
|
|
|
558 * Like transchar(), but called with a byte instead of a character. Checks
|
|
|
559 * for an illegal UTF-8 byte.
|
|
|
560 */
|
|
|
561 char_u *
|
|
|
562 transchar_byte(c)
|
|
|
563 int c;
|
|
|
564 {
|
|
|
565 if (enc_utf8 && c >= 0x80)
|
|
|
566 {
|
|
|
567 transchar_nonprint(transchar_buf, c);
|
|
|
568 return transchar_buf;
|
|
|
569 }
|
|
|
570 return transchar(c);
|
|
|
571 }
|
|
|
572 #endif
|
|
|
573
|
|
|
574 /*
|
|
|
575 * Convert non-printable character to two or more printable characters in
|
|
|
576 * "buf[]". "buf" needs to be able to hold five bytes.
|
|
|
577 * Does NOT work for multi-byte characters, c must be <= 255.
|
|
|
578 */
|
|
|
579 void
|
|
|
580 transchar_nonprint(buf, c)
|
|
|
581 char_u *buf;
|
|
|
582 int c;
|
|
|
583 {
|
|
|
584 if (c == NL)
|
|
|
585 c = NUL; /* we use newline in place of a NUL */
|
|
|
586 else if (c == CAR && get_fileformat(curbuf) == EOL_MAC)
|
|
|
587 c = NL; /* we use CR in place of NL in this case */
|
|
|
588
|
|
|
589 if (dy_flags & DY_UHEX) /* 'display' has "uhex" */
|
|
|
590 transchar_hex(buf, c);
|
|
|
591
|
|
|
592 #ifdef EBCDIC
|
|
|
593 /* For EBCDIC only the characters 0-63 and 255 are not printable */
|
|
|
594 else if (CtrlChar(c) != 0 || c == DEL)
|
|
|
595 #else
|
|
|
596 else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */
|
|
|
597 #endif
|
|
|
598 {
|
|
|
599 buf[0] = '^';
|
|
|
600 #ifdef EBCDIC
|
|
|
601 if (c == DEL)
|
|
|
602 buf[1] = '?'; /* DEL displayed as ^? */
|
|
|
603 else
|
|
|
604 buf[1] = CtrlChar(c);
|
|
|
605 #else
|
|
|
606 buf[1] = c ^ 0x40; /* DEL displayed as ^? */
|
|
|
607 #endif
|
|
|
608
|
|
|
609 buf[2] = NUL;
|
|
|
610 }
|
|
|
611 #ifdef FEAT_MBYTE
|
|
|
612 else if (enc_utf8 && c >= 0x80)
|
|
|
613 {
|
|
|
614 transchar_hex(buf, c);
|
|
|
615 }
|
|
|
616 #endif
|
|
|
617 #ifndef EBCDIC
|
|
|
618 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */
|
|
|
619 {
|
|
|
620 buf[0] = '|';
|
|
|
621 buf[1] = c - 0x80;
|
|
|
622 buf[2] = NUL;
|
|
|
623 }
|
|
|
624 #else
|
|
|
625 else if (c < 64)
|
|
|
626 {
|
|
|
627 buf[0] = '~';
|
|
|
628 buf[1] = MetaChar(c);
|
|
|
629 buf[2] = NUL;
|
|
|
630 }
|
|
|
631 #endif
|
|
|
632 else /* 0x80 - 0x9f and 0xff */
|
|
|
633 {
|
|
|
634 /*
|
|
|
635 * TODO: EBCDIC I don't know what to do with this chars, so I display
|
|
|
636 * them as '~?' for now
|
|
|
637 */
|
|
|
638 buf[0] = '~';
|
|
|
639 #ifdef EBCDIC
|
|
|
640 buf[1] = '?'; /* 0xff displayed as ~? */
|
|
|
641 #else
|
|
|
642 buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */
|
|
|
643 #endif
|
|
|
644 buf[2] = NUL;
|
|
|
645 }
|
|
|
646 }
|
|
|
647
|
|
|
648 void
|
|
|
649 transchar_hex(buf, c)
|
|
|
650 char_u *buf;
|
|
|
651 int c;
|
|
|
652 {
|
|
|
653 int i = 0;
|
|
|
654
|
|
|
655 buf[0] = '<';
|
|
|
656 #ifdef FEAT_MBYTE
|
|
|
657 if (c > 255)
|
|
|
658 {
|
|
|
659 buf[++i] = nr2hex((unsigned)c >> 12);
|
|
|
660 buf[++i] = nr2hex((unsigned)c >> 8);
|
|
|
661 }
|
|
|
662 #endif
|
|
|
663 buf[++i] = nr2hex((unsigned)c >> 4);
|
|
|
664 buf[++i] = nr2hex(c);
|
|
|
665 buf[++i] = '>';
|
|
|
666 buf[++i] = NUL;
|
|
|
667 }
|
|
|
668
|
|
|
669 /*
|
|
|
670 * Convert the lower 4 bits of byte "c" to its hex character.
|
|
|
671 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or
|
|
|
672 * function key 1.
|
|
|
673 */
|
|
|
674 static int
|
|
|
675 nr2hex(c)
|
|
|
676 int c;
|
|
|
677 {
|
|
|
678 if ((c & 0xf) <= 9)
|
|
|
679 return (c & 0xf) + '0';
|
|
|
680 return (c & 0xf) - 10 + 'a';
|
|
|
681 }
|
|
|
682
|
|
|
683 /*
|
|
|
684 * Return number of display cells occupied by byte "b".
|
|
|
685 * Caller must make sure 0 <= b <= 255.
|
|
|
686 * For multi-byte mode "b" must be the first byte of a character.
|
|
|
687 * A TAB is counted as two cells: "^I".
|
|
|
688 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of
|
|
|
689 * cells depends on further bytes.
|
|
|
690 */
|
|
|
691 int
|
|
|
692 byte2cells(b)
|
|
|
693 int b;
|
|
|
694 {
|
|
|
695 #ifdef FEAT_MBYTE
|
|
|
696 if (enc_utf8 && b >= 0x80)
|
|
|
697 return 0;
|
|
|
698 #endif
|
|
|
699 return (chartab[b] & CT_CELL_MASK);
|
|
|
700 }
|
|
|
701
|
|
|
702 /*
|
|
|
703 * Return number of display cells occupied by character "c".
|
|
|
704 * "c" can be a special key (negative number) in which case 3 or 4 is returned.
|
|
|
705 * A TAB is counted as two cells: "^I" or four: "<09>".
|
|
|
706 */
|
|
|
707 int
|
|
|
708 char2cells(c)
|
|
|
709 int c;
|
|
|
710 {
|
|
|
711 if (IS_SPECIAL(c))
|
|
|
712 return char2cells(K_SECOND(c)) + 2;
|
|
|
713 #ifdef FEAT_MBYTE
|
|
|
714 if (c >= 0x80)
|
|
|
715 {
|
|
|
716 /* UTF-8: above 0x80 need to check the value */
|
|
|
717 if (enc_utf8)
|
|
|
718 return utf_char2cells(c);
|
|
|
719 /* DBCS: double-byte means double-width, except for euc-jp with first
|
|
|
720 * byte 0x8e */
|
|
|
721 if (enc_dbcs != 0 && c >= 0x100)
|
|
|
722 {
|
|
|
723 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e)
|
|
|
724 return 1;
|
|
|
725 return 2;
|
|
|
726 }
|
|
|
727 }
|
|
|
728 #endif
|
|
|
729 return (chartab[c & 0xff] & CT_CELL_MASK);
|
|
|
730 }
|
|
|
731
|
|
|
732 /*
|
|
|
733 * Return number of display cells occupied by character at "*p".
|
|
|
734 * A TAB is counted as two cells: "^I" or four: "<09>".
|
|
|
735 */
|
|
|
736 int
|
|
|
737 ptr2cells(p)
|
|
|
738 char_u *p;
|
|
|
739 {
|
|
|
740 #ifdef FEAT_MBYTE
|
|
|
741 /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */
|
|
|
742 if (enc_utf8 && *p >= 0x80)
|
|
|
743 return utf_ptr2cells(p);
|
|
|
744 /* For DBCS we can tell the cell count from the first byte. */
|
|
|
745 #endif
|
|
|
746 return (chartab[*p] & CT_CELL_MASK);
|
|
|
747 }
|
|
|
748
|
|
|
749 /*
|
|
|
750 * Return the number of characters string "s" will take on the screen,
|
|
|
751 * counting TABs as two characters: "^I".
|
|
|
752 */
|
|
|
753 int
|
|
|
754 vim_strsize(s)
|
|
|
755 char_u *s;
|
|
|
756 {
|
|
|
757 return vim_strnsize(s, (int)MAXCOL);
|
|
|
758 }
|
|
|
759
|
|
|
760 /*
|
|
|
761 * Return the number of characters string "s[len]" will take on the screen,
|
|
|
762 * counting TABs as two characters: "^I".
|
|
|
763 */
|
|
|
764 int
|
|
|
765 vim_strnsize(s, len)
|
|
|
766 char_u *s;
|
|
|
767 int len;
|
|
|
768 {
|
|
|
769 int size = 0;
|
|
|
770
|
|
|
771 while (*s != NUL && --len >= 0)
|
|
|
772 {
|
|
|
773 #ifdef FEAT_MBYTE
|
|
|
774 if (has_mbyte)
|
|
|
775 {
|
|
474
|
776 int l = (*mb_ptr2len)(s);
|
|
7
|
777
|
|
|
778 size += ptr2cells(s);
|
|
|
779 s += l;
|
|
|
780 len -= l - 1;
|
|
|
781 }
|
|
|
782 else
|
|
|
783 #endif
|
|
|
784 size += byte2cells(*s++);
|
|
|
785 }
|
|
|
786 return size;
|
|
|
787 }
|
|
|
788
|
|
|
789 /*
|
|
|
790 * Return the number of characters 'c' will take on the screen, taking
|
|
|
791 * into account the size of a tab.
|
|
|
792 * Use a define to make it fast, this is used very often!!!
|
|
|
793 * Also see getvcol() below.
|
|
|
794 */
|
|
|
795
|
|
|
796 #define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
|
|
|
797 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \
|
|
|
798 { \
|
|
|
799 int ts; \
|
|
|
800 ts = (buf)->b_p_ts; \
|
|
|
801 return (int)(ts - (col % ts)); \
|
|
|
802 } \
|
|
|
803 else \
|
|
|
804 return ptr2cells(p);
|
|
|
805
|
|
|
806 #if defined(FEAT_VREPLACE) || defined(FEAT_EX_EXTRA) || defined(FEAT_GUI) \
|
|
|
807 || defined(FEAT_VIRTUALEDIT) || defined(PROTO)
|
|
|
808 int
|
|
|
809 chartabsize(p, col)
|
|
|
810 char_u *p;
|
|
|
811 colnr_T col;
|
|
|
812 {
|
|
|
813 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col)
|
|
|
814 }
|
|
|
815 #endif
|
|
|
816
|
|
|
817 #ifdef FEAT_LINEBREAK
|
|
|
818 static int
|
|
|
819 win_chartabsize(wp, p, col)
|
|
|
820 win_T *wp;
|
|
|
821 char_u *p;
|
|
|
822 colnr_T col;
|
|
|
823 {
|
|
|
824 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col)
|
|
|
825 }
|
|
|
826 #endif
|
|
|
827
|
|
|
828 /*
|
|
|
829 * return the number of characters the string 's' will take on the screen,
|
|
|
830 * taking into account the size of a tab
|
|
|
831 */
|
|
|
832 int
|
|
|
833 linetabsize(s)
|
|
|
834 char_u *s;
|
|
|
835 {
|
|
|
836 colnr_T col = 0;
|
|
|
837
|
|
|
838 while (*s != NUL)
|
|
|
839 col += lbr_chartabsize_adv(&s, col);
|
|
|
840 return (int)col;
|
|
|
841 }
|
|
|
842
|
|
|
843 /*
|
|
|
844 * Like linetabsize(), but for a given window instead of the current one.
|
|
|
845 */
|
|
|
846 int
|
|
|
847 win_linetabsize(wp, p, len)
|
|
|
848 win_T *wp;
|
|
|
849 char_u *p;
|
|
|
850 colnr_T len;
|
|
|
851 {
|
|
|
852 colnr_T col = 0;
|
|
|
853 char_u *s;
|
|
|
854
|
|
40
|
855 for (s = p; *s != NUL && (len == MAXCOL || s < p + len); mb_ptr_adv(s))
|
|
7
|
856 col += win_lbr_chartabsize(wp, s, col, NULL);
|
|
|
857 return (int)col;
|
|
|
858 }
|
|
|
859
|
|
|
860 /*
|
|
42
|
861 * Return TRUE if 'c' is a normal identifier character:
|
|
|
862 * Letters and characters from the 'isident' option.
|
|
7
|
863 */
|
|
|
864 int
|
|
|
865 vim_isIDc(c)
|
|
|
866 int c;
|
|
|
867 {
|
|
|
868 return (c > 0 && c < 0x100 && (chartab[c] & CT_ID_CHAR));
|
|
|
869 }
|
|
|
870
|
|
|
871 /*
|
|
|
872 * return TRUE if 'c' is a keyword character: Letters and characters from
|
|
|
873 * 'iskeyword' option for current buffer.
|
|
|
874 * For multi-byte characters mb_get_class() is used (builtin rules).
|
|
|
875 */
|
|
|
876 int
|
|
|
877 vim_iswordc(c)
|
|
|
878 int c;
|
|
|
879 {
|
|
|
880 #ifdef FEAT_MBYTE
|
|
|
881 if (c >= 0x100)
|
|
|
882 {
|
|
|
883 if (enc_dbcs != 0)
|
|
|
884 return dbcs_class((unsigned)c >> 8, c & 0xff) >= 2;
|
|
|
885 if (enc_utf8)
|
|
|
886 return utf_class(c) >= 2;
|
|
|
887 }
|
|
|
888 #endif
|
|
|
889 return (c > 0 && c < 0x100 && GET_CHARTAB(curbuf, c) != 0);
|
|
|
890 }
|
|
|
891
|
|
|
892 /*
|
|
|
893 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character.
|
|
|
894 */
|
|
|
895 int
|
|
|
896 vim_iswordp(p)
|
|
|
897 char_u *p;
|
|
|
898 {
|
|
|
899 #ifdef FEAT_MBYTE
|
|
|
900 if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
|
901 return mb_get_class(p) >= 2;
|
|
|
902 #endif
|
|
|
903 return GET_CHARTAB(curbuf, *p) != 0;
|
|
|
904 }
|
|
|
905
|
|
|
906 #if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
|
907 int
|
|
|
908 vim_iswordc_buf(p, buf)
|
|
|
909 char_u *p;
|
|
|
910 buf_T *buf;
|
|
|
911 {
|
|
|
912 # ifdef FEAT_MBYTE
|
|
|
913 if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
|
914 return mb_get_class(p) >= 2;
|
|
|
915 # endif
|
|
|
916 return (GET_CHARTAB(buf, *p) != 0);
|
|
|
917 }
|
|
741
|
918 #endif
|
|
7
|
919
|
|
|
920 /*
|
|
|
921 * return TRUE if 'c' is a valid file-name character
|
|
|
922 * Assume characters above 0x100 are valid (multi-byte).
|
|
|
923 */
|
|
|
924 int
|
|
|
925 vim_isfilec(c)
|
|
|
926 int c;
|
|
|
927 {
|
|
|
928 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_FNAME_CHAR)));
|
|
|
929 }
|
|
|
930
|
|
|
931 /*
|
|
|
932 * return TRUE if 'c' is a printable character
|
|
|
933 * Assume characters above 0x100 are printable (multi-byte), except for
|
|
|
934 * Unicode.
|
|
|
935 */
|
|
|
936 int
|
|
|
937 vim_isprintc(c)
|
|
|
938 int c;
|
|
|
939 {
|
|
|
940 #ifdef FEAT_MBYTE
|
|
|
941 if (enc_utf8 && c >= 0x100)
|
|
|
942 return utf_printable(c);
|
|
|
943 #endif
|
|
|
944 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR)));
|
|
|
945 }
|
|
|
946
|
|
|
947 /*
|
|
|
948 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head
|
|
|
949 * byte of a double-byte character.
|
|
|
950 */
|
|
|
951 int
|
|
|
952 vim_isprintc_strict(c)
|
|
|
953 int c;
|
|
|
954 {
|
|
|
955 #ifdef FEAT_MBYTE
|
|
|
956 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1)
|
|
|
957 return FALSE;
|
|
|
958 if (enc_utf8 && c >= 0x100)
|
|
|
959 return utf_printable(c);
|
|
|
960 #endif
|
|
|
961 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR)));
|
|
|
962 }
|
|
|
963
|
|
|
964 /*
|
|
|
965 * like chartabsize(), but also check for line breaks on the screen
|
|
|
966 */
|
|
|
967 int
|
|
|
968 lbr_chartabsize(s, col)
|
|
|
969 unsigned char *s;
|
|
|
970 colnr_T col;
|
|
|
971 {
|
|
|
972 #ifdef FEAT_LINEBREAK
|
|
|
973 if (!curwin->w_p_lbr && *p_sbr == NUL)
|
|
|
974 {
|
|
|
975 #endif
|
|
|
976 #ifdef FEAT_MBYTE
|
|
|
977 if (curwin->w_p_wrap)
|
|
|
978 return win_nolbr_chartabsize(curwin, s, col, NULL);
|
|
|
979 #endif
|
|
|
980 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col)
|
|
|
981 #ifdef FEAT_LINEBREAK
|
|
|
982 }
|
|
|
983 return win_lbr_chartabsize(curwin, s, col, NULL);
|
|
|
984 #endif
|
|
|
985 }
|
|
|
986
|
|
|
987 /*
|
|
|
988 * Call lbr_chartabsize() and advance the pointer.
|
|
|
989 */
|
|
|
990 int
|
|
|
991 lbr_chartabsize_adv(s, col)
|
|
|
992 char_u **s;
|
|
|
993 colnr_T col;
|
|
|
994 {
|
|
|
995 int retval;
|
|
|
996
|
|
|
997 retval = lbr_chartabsize(*s, col);
|
|
39
|
998 mb_ptr_adv(*s);
|
|
7
|
999 return retval;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 /*
|
|
|
1003 * This function is used very often, keep it fast!!!!
|
|
|
1004 *
|
|
|
1005 * If "headp" not NULL, set *headp to the size of what we for 'showbreak'
|
|
|
1006 * string at start of line. Warning: *headp is only set if it's a non-zero
|
|
|
1007 * value, init to 0 before calling.
|
|
|
1008 */
|
|
|
1009 /*ARGSUSED*/
|
|
|
1010 int
|
|
|
1011 win_lbr_chartabsize(wp, s, col, headp)
|
|
|
1012 win_T *wp;
|
|
|
1013 char_u *s;
|
|
|
1014 colnr_T col;
|
|
|
1015 int *headp;
|
|
|
1016 {
|
|
|
1017 #ifdef FEAT_LINEBREAK
|
|
|
1018 int c;
|
|
|
1019 int size;
|
|
|
1020 colnr_T col2;
|
|
|
1021 colnr_T colmax;
|
|
|
1022 int added;
|
|
|
1023 # ifdef FEAT_MBYTE
|
|
|
1024 int mb_added = 0;
|
|
|
1025 # else
|
|
|
1026 # define mb_added 0
|
|
|
1027 # endif
|
|
|
1028 int numberextra;
|
|
|
1029 char_u *ps;
|
|
|
1030 int tab_corr = (*s == TAB);
|
|
236
|
1031 int n;
|
|
7
|
1032
|
|
|
1033 /*
|
|
|
1034 * No 'linebreak' and 'showbreak': return quickly.
|
|
|
1035 */
|
|
|
1036 if (!wp->w_p_lbr && *p_sbr == NUL)
|
|
|
1037 #endif
|
|
|
1038 {
|
|
|
1039 #ifdef FEAT_MBYTE
|
|
|
1040 if (wp->w_p_wrap)
|
|
|
1041 return win_nolbr_chartabsize(wp, s, col, headp);
|
|
|
1042 #endif
|
|
|
1043 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col)
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 #ifdef FEAT_LINEBREAK
|
|
|
1047 /*
|
|
|
1048 * First get normal size, without 'linebreak'
|
|
|
1049 */
|
|
|
1050 size = win_chartabsize(wp, s, col);
|
|
|
1051 c = *s;
|
|
|
1052
|
|
|
1053 /*
|
|
|
1054 * If 'linebreak' set check at a blank before a non-blank if the line
|
|
|
1055 * needs a break here
|
|
|
1056 */
|
|
|
1057 if (wp->w_p_lbr
|
|
|
1058 && vim_isbreak(c)
|
|
|
1059 && !vim_isbreak(s[1])
|
|
|
1060 && !wp->w_p_list
|
|
|
1061 && wp->w_p_wrap
|
|
|
1062 # ifdef FEAT_VERTSPLIT
|
|
|
1063 && wp->w_width != 0
|
|
|
1064 # endif
|
|
|
1065 )
|
|
|
1066 {
|
|
|
1067 /*
|
|
|
1068 * Count all characters from first non-blank after a blank up to next
|
|
|
1069 * non-blank after a blank.
|
|
|
1070 */
|
|
|
1071 numberextra = win_col_off(wp);
|
|
|
1072 col2 = col;
|
|
|
1073 colmax = W_WIDTH(wp) - numberextra;
|
|
|
1074 if (col >= colmax)
|
|
236
|
1075 {
|
|
|
1076 n = colmax + win_col_off2(wp);
|
|
|
1077 if (n > 0)
|
|
|
1078 colmax += (((col - colmax) / n) + 1) * n;
|
|
|
1079 }
|
|
|
1080
|
|
7
|
1081 for (;;)
|
|
|
1082 {
|
|
|
1083 ps = s;
|
|
39
|
1084 mb_ptr_adv(s);
|
|
7
|
1085 c = *s;
|
|
|
1086 if (!(c != NUL
|
|
|
1087 && (vim_isbreak(c)
|
|
|
1088 || (!vim_isbreak(c)
|
|
|
1089 && (col2 == col || !vim_isbreak(*ps))))))
|
|
|
1090 break;
|
|
|
1091
|
|
|
1092 col2 += win_chartabsize(wp, s, col2);
|
|
|
1093 if (col2 >= colmax) /* doesn't fit */
|
|
|
1094 {
|
|
|
1095 size = colmax - col;
|
|
|
1096 tab_corr = FALSE;
|
|
|
1097 break;
|
|
|
1098 }
|
|
|
1099 }
|
|
|
1100 }
|
|
|
1101 # ifdef FEAT_MBYTE
|
|
|
1102 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1
|
|
|
1103 && wp->w_p_wrap && in_win_border(wp, col))
|
|
|
1104 {
|
|
|
1105 ++size; /* Count the ">" in the last column. */
|
|
|
1106 mb_added = 1;
|
|
|
1107 }
|
|
|
1108 # endif
|
|
|
1109
|
|
|
1110 /*
|
|
|
1111 * May have to add something for 'showbreak' string at start of line
|
|
|
1112 * Set *headp to the size of what we add.
|
|
|
1113 */
|
|
|
1114 added = 0;
|
|
|
1115 if (*p_sbr != NUL && wp->w_p_wrap && col != 0)
|
|
|
1116 {
|
|
|
1117 numberextra = win_col_off(wp);
|
|
|
1118 col += numberextra + mb_added;
|
|
|
1119 if (col >= (colnr_T)W_WIDTH(wp))
|
|
|
1120 {
|
|
|
1121 col -= W_WIDTH(wp);
|
|
|
1122 numberextra = W_WIDTH(wp) - (numberextra - win_col_off2(wp));
|
|
|
1123 if (numberextra > 0)
|
|
|
1124 col = col % numberextra;
|
|
|
1125 }
|
|
|
1126 if (col == 0 || col + size > (colnr_T)W_WIDTH(wp))
|
|
|
1127 {
|
|
|
1128 added = vim_strsize(p_sbr);
|
|
|
1129 if (tab_corr)
|
|
|
1130 size += (added / wp->w_buffer->b_p_ts) * wp->w_buffer->b_p_ts;
|
|
|
1131 else
|
|
|
1132 size += added;
|
|
|
1133 if (col != 0)
|
|
|
1134 added = 0;
|
|
|
1135 }
|
|
|
1136 }
|
|
|
1137 if (headp != NULL)
|
|
|
1138 *headp = added + mb_added;
|
|
|
1139 return size;
|
|
|
1140 #endif
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
|
1144 /*
|
|
|
1145 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and
|
|
|
1146 * 'wrap' is on. This means we need to check for a double-byte character that
|
|
|
1147 * doesn't fit at the end of the screen line.
|
|
|
1148 */
|
|
|
1149 static int
|
|
|
1150 win_nolbr_chartabsize(wp, s, col, headp)
|
|
|
1151 win_T *wp;
|
|
|
1152 char_u *s;
|
|
|
1153 colnr_T col;
|
|
|
1154 int *headp;
|
|
|
1155 {
|
|
|
1156 int n;
|
|
|
1157
|
|
|
1158 if (*s == TAB && (!wp->w_p_list || lcs_tab1))
|
|
|
1159 {
|
|
|
1160 n = wp->w_buffer->b_p_ts;
|
|
|
1161 return (int)(n - (col % n));
|
|
|
1162 }
|
|
|
1163 n = ptr2cells(s);
|
|
|
1164 /* Add one cell for a double-width character in the last column of the
|
|
|
1165 * window, displayed with a ">". */
|
|
|
1166 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col))
|
|
|
1167 {
|
|
|
1168 if (headp != NULL)
|
|
|
1169 *headp = 1;
|
|
|
1170 return 3;
|
|
|
1171 }
|
|
|
1172 return n;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 /*
|
|
|
1176 * Return TRUE if virtual column "vcol" is in the rightmost column of window
|
|
|
1177 * "wp".
|
|
|
1178 */
|
|
|
1179 int
|
|
|
1180 in_win_border(wp, vcol)
|
|
|
1181 win_T *wp;
|
|
|
1182 colnr_T vcol;
|
|
|
1183 {
|
|
|
1184 colnr_T width1; /* width of first line (after line number) */
|
|
|
1185 colnr_T width2; /* width of further lines */
|
|
|
1186
|
|
|
1187 #ifdef FEAT_VERTSPLIT
|
|
|
1188 if (wp->w_width == 0) /* there is no border */
|
|
|
1189 return FALSE;
|
|
|
1190 #endif
|
|
|
1191 width1 = W_WIDTH(wp) - win_col_off(wp);
|
|
|
1192 if (vcol < width1 - 1)
|
|
|
1193 return FALSE;
|
|
|
1194 if (vcol == width1 - 1)
|
|
|
1195 return TRUE;
|
|
|
1196 width2 = width1 + win_col_off2(wp);
|
|
|
1197 return ((vcol - width1) % width2 == width2 - 1);
|
|
|
1198 }
|
|
|
1199 #endif /* FEAT_MBYTE */
|
|
|
1200
|
|
|
1201 /*
|
|
|
1202 * Get virtual column number of pos.
|
|
|
1203 * start: on the first position of this character (TAB, ctrl)
|
|
|
1204 * cursor: where the cursor is on this character (first char, except for TAB)
|
|
|
1205 * end: on the last position of this character (TAB, ctrl)
|
|
|
1206 *
|
|
|
1207 * This is used very often, keep it fast!
|
|
|
1208 */
|
|
|
1209 void
|
|
|
1210 getvcol(wp, pos, start, cursor, end)
|
|
|
1211 win_T *wp;
|
|
|
1212 pos_T *pos;
|
|
|
1213 colnr_T *start;
|
|
|
1214 colnr_T *cursor;
|
|
|
1215 colnr_T *end;
|
|
|
1216 {
|
|
|
1217 colnr_T vcol;
|
|
|
1218 char_u *ptr; /* points to current char */
|
|
|
1219 char_u *posptr; /* points to char at pos->col */
|
|
|
1220 int incr;
|
|
|
1221 int head;
|
|
|
1222 int ts = wp->w_buffer->b_p_ts;
|
|
|
1223 int c;
|
|
|
1224
|
|
|
1225 vcol = 0;
|
|
|
1226 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
|
1227 posptr = ptr + pos->col;
|
|
|
1228
|
|
|
1229 /*
|
|
|
1230 * This function is used very often, do some speed optimizations.
|
|
|
1231 * When 'list', 'linebreak' and 'showbreak' are not set use a simple loop.
|
|
|
1232 * Also use this when 'list' is set but tabs take their normal size.
|
|
|
1233 */
|
|
|
1234 if ((!wp->w_p_list || lcs_tab1 != NUL)
|
|
|
1235 #ifdef FEAT_LINEBREAK
|
|
|
1236 && !wp->w_p_lbr && *p_sbr == NUL
|
|
|
1237 #endif
|
|
|
1238 )
|
|
|
1239 {
|
|
|
1240 #ifndef FEAT_MBYTE
|
|
|
1241 head = 0;
|
|
|
1242 #endif
|
|
|
1243 for (;;)
|
|
|
1244 {
|
|
|
1245 #ifdef FEAT_MBYTE
|
|
|
1246 head = 0;
|
|
|
1247 #endif
|
|
|
1248 c = *ptr;
|
|
|
1249 /* make sure we don't go past the end of the line */
|
|
|
1250 if (c == NUL)
|
|
|
1251 {
|
|
|
1252 incr = 1; /* NUL at end of line only takes one column */
|
|
|
1253 break;
|
|
|
1254 }
|
|
|
1255 /* A tab gets expanded, depending on the current column */
|
|
|
1256 if (c == TAB)
|
|
|
1257 incr = ts - (vcol % ts);
|
|
|
1258 else
|
|
|
1259 {
|
|
|
1260 #ifdef FEAT_MBYTE
|
|
|
1261 if (has_mbyte)
|
|
|
1262 {
|
|
|
1263 /* For utf-8, if the byte is >= 0x80, need to look at
|
|
|
1264 * further bytes to find the cell width. */
|
|
|
1265 if (enc_utf8 && c >= 0x80)
|
|
|
1266 incr = utf_ptr2cells(ptr);
|
|
|
1267 else
|
|
|
1268 incr = CHARSIZE(c);
|
|
|
1269
|
|
|
1270 /* If a double-cell char doesn't fit at the end of a line
|
|
|
1271 * it wraps to the next line, it's like this char is three
|
|
|
1272 * cells wide. */
|
|
|
1273 if (incr == 2 && wp->w_p_wrap && in_win_border(wp, vcol))
|
|
|
1274 {
|
|
|
1275 ++incr;
|
|
|
1276 head = 1;
|
|
|
1277 }
|
|
|
1278 }
|
|
|
1279 else
|
|
|
1280 #endif
|
|
|
1281 incr = CHARSIZE(c);
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 if (ptr >= posptr) /* character at pos->col */
|
|
|
1285 break;
|
|
|
1286
|
|
|
1287 vcol += incr;
|
|
39
|
1288 mb_ptr_adv(ptr);
|
|
7
|
1289 }
|
|
|
1290 }
|
|
|
1291 else
|
|
|
1292 {
|
|
|
1293 for (;;)
|
|
|
1294 {
|
|
|
1295 /* A tab gets expanded, depending on the current column */
|
|
|
1296 head = 0;
|
|
|
1297 incr = win_lbr_chartabsize(wp, ptr, vcol, &head);
|
|
|
1298 /* make sure we don't go past the end of the line */
|
|
|
1299 if (*ptr == NUL)
|
|
|
1300 {
|
|
|
1301 incr = 1; /* NUL at end of line only takes one column */
|
|
|
1302 break;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305 if (ptr >= posptr) /* character at pos->col */
|
|
|
1306 break;
|
|
|
1307
|
|
|
1308 vcol += incr;
|
|
39
|
1309 mb_ptr_adv(ptr);
|
|
7
|
1310 }
|
|
|
1311 }
|
|
|
1312 if (start != NULL)
|
|
|
1313 *start = vcol + head;
|
|
|
1314 if (end != NULL)
|
|
|
1315 *end = vcol + incr - 1;
|
|
|
1316 if (cursor != NULL)
|
|
|
1317 {
|
|
|
1318 if (*ptr == TAB
|
|
|
1319 && (State & NORMAL)
|
|
|
1320 && !wp->w_p_list
|
|
|
1321 && !virtual_active()
|
|
|
1322 #ifdef FEAT_VISUAL
|
|
|
1323 && !(VIsual_active
|
|
|
1324 && (*p_sel == 'e' || ltoreq(*pos, VIsual)))
|
|
|
1325 #endif
|
|
|
1326 )
|
|
|
1327 *cursor = vcol + incr - 1; /* cursor at end */
|
|
|
1328 else
|
|
|
1329 *cursor = vcol + head; /* cursor at start */
|
|
|
1330 }
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 /*
|
|
|
1334 * Get virtual cursor column in the current window, pretending 'list' is off.
|
|
|
1335 */
|
|
|
1336 colnr_T
|
|
|
1337 getvcol_nolist(posp)
|
|
|
1338 pos_T *posp;
|
|
|
1339 {
|
|
|
1340 int list_save = curwin->w_p_list;
|
|
|
1341 colnr_T vcol;
|
|
|
1342
|
|
|
1343 curwin->w_p_list = FALSE;
|
|
|
1344 getvcol(curwin, posp, NULL, &vcol, NULL);
|
|
|
1345 curwin->w_p_list = list_save;
|
|
|
1346 return vcol;
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 #if defined(FEAT_VIRTUALEDIT) || defined(PROTO)
|
|
|
1350 /*
|
|
|
1351 * Get virtual column in virtual mode.
|
|
|
1352 */
|
|
|
1353 void
|
|
|
1354 getvvcol(wp, pos, start, cursor, end)
|
|
|
1355 win_T *wp;
|
|
|
1356 pos_T *pos;
|
|
|
1357 colnr_T *start;
|
|
|
1358 colnr_T *cursor;
|
|
|
1359 colnr_T *end;
|
|
|
1360 {
|
|
|
1361 colnr_T col;
|
|
|
1362 colnr_T coladd;
|
|
|
1363 colnr_T endadd;
|
|
|
1364 # ifdef FEAT_MBYTE
|
|
|
1365 char_u *ptr;
|
|
|
1366 # endif
|
|
|
1367
|
|
|
1368 if (virtual_active())
|
|
|
1369 {
|
|
|
1370 /* For virtual mode, only want one value */
|
|
|
1371 getvcol(wp, pos, &col, NULL, NULL);
|
|
|
1372
|
|
|
1373 coladd = pos->coladd;
|
|
|
1374 endadd = 0;
|
|
|
1375 # ifdef FEAT_MBYTE
|
|
|
1376 /* Cannot put the cursor on part of a wide character. */
|
|
|
1377 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
|
1378 if (pos->col < STRLEN(ptr))
|
|
|
1379 {
|
|
|
1380 int c = (*mb_ptr2char)(ptr + pos->col);
|
|
|
1381
|
|
|
1382 if (c != TAB && vim_isprintc(c))
|
|
|
1383 {
|
|
|
1384 endadd = char2cells(c) - 1;
|
|
557
|
1385 if (coladd > endadd) /* past end of line */
|
|
|
1386 endadd = 0;
|
|
7
|
1387 else
|
|
|
1388 coladd = 0;
|
|
|
1389 }
|
|
|
1390 }
|
|
|
1391 # endif
|
|
|
1392 col += coladd;
|
|
|
1393 if (start != NULL)
|
|
|
1394 *start = col;
|
|
|
1395 if (cursor != NULL)
|
|
|
1396 *cursor = col;
|
|
|
1397 if (end != NULL)
|
|
|
1398 *end = col + endadd;
|
|
|
1399 }
|
|
|
1400 else
|
|
|
1401 getvcol(wp, pos, start, cursor, end);
|
|
|
1402 }
|
|
|
1403 #endif
|
|
|
1404
|
|
|
1405 #if defined(FEAT_VISUAL) || defined(PROTO)
|
|
|
1406 /*
|
|
|
1407 * Get the leftmost and rightmost virtual column of pos1 and pos2.
|
|
|
1408 * Used for Visual block mode.
|
|
|
1409 */
|
|
|
1410 void
|
|
|
1411 getvcols(wp, pos1, pos2, left, right)
|
|
|
1412 win_T *wp;
|
|
|
1413 pos_T *pos1, *pos2;
|
|
|
1414 colnr_T *left, *right;
|
|
|
1415 {
|
|
|
1416 colnr_T from1, from2, to1, to2;
|
|
|
1417
|
|
|
1418 if (ltp(pos1, pos2))
|
|
|
1419 {
|
|
|
1420 getvvcol(wp, pos1, &from1, NULL, &to1);
|
|
|
1421 getvvcol(wp, pos2, &from2, NULL, &to2);
|
|
|
1422 }
|
|
|
1423 else
|
|
|
1424 {
|
|
|
1425 getvvcol(wp, pos2, &from1, NULL, &to1);
|
|
|
1426 getvvcol(wp, pos1, &from2, NULL, &to2);
|
|
|
1427 }
|
|
|
1428 if (from2 < from1)
|
|
|
1429 *left = from2;
|
|
|
1430 else
|
|
|
1431 *left = from1;
|
|
|
1432 if (to2 > to1)
|
|
|
1433 {
|
|
|
1434 if (*p_sel == 'e' && from2 - 1 >= to1)
|
|
|
1435 *right = from2 - 1;
|
|
|
1436 else
|
|
|
1437 *right = to2;
|
|
|
1438 }
|
|
|
1439 else
|
|
|
1440 *right = to1;
|
|
|
1441 }
|
|
|
1442 #endif
|
|
|
1443
|
|
|
1444 /*
|
|
|
1445 * skipwhite: skip over ' ' and '\t'.
|
|
|
1446 */
|
|
|
1447 char_u *
|
|
|
1448 skipwhite(p)
|
|
|
1449 char_u *p;
|
|
|
1450 {
|
|
|
1451 while (vim_iswhite(*p)) /* skip to next non-white */
|
|
|
1452 ++p;
|
|
|
1453 return p;
|
|
|
1454 }
|
|
|
1455
|
|
|
1456 /*
|
|
293
|
1457 * skip over digits
|
|
7
|
1458 */
|
|
|
1459 char_u *
|
|
|
1460 skipdigits(p)
|
|
|
1461 char_u *p;
|
|
|
1462 {
|
|
|
1463 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */
|
|
|
1464 ++p;
|
|
|
1465 return p;
|
|
|
1466 }
|
|
|
1467
|
|
741
|
1468 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO)
|
|
301
|
1469 /*
|
|
|
1470 * skip over digits and hex characters
|
|
|
1471 */
|
|
|
1472 char_u *
|
|
|
1473 skiphex(p)
|
|
|
1474 char_u *p;
|
|
|
1475 {
|
|
|
1476 while (vim_isxdigit(*p)) /* skip to next non-digit */
|
|
|
1477 ++p;
|
|
|
1478 return p;
|
|
|
1479 }
|
|
|
1480 #endif
|
|
|
1481
|
|
293
|
1482 #if defined(FEAT_EX_EXTRA) || defined(PROTO)
|
|
|
1483 /*
|
|
|
1484 * skip to digit (or NUL after the string)
|
|
|
1485 */
|
|
|
1486 char_u *
|
|
|
1487 skiptodigit(p)
|
|
|
1488 char_u *p;
|
|
|
1489 {
|
|
|
1490 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */
|
|
|
1491 ++p;
|
|
|
1492 return p;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 /*
|
|
|
1496 * skip to hex character (or NUL after the string)
|
|
|
1497 */
|
|
|
1498 char_u *
|
|
|
1499 skiptohex(p)
|
|
|
1500 char_u *p;
|
|
|
1501 {
|
|
|
1502 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */
|
|
|
1503 ++p;
|
|
|
1504 return p;
|
|
|
1505 }
|
|
|
1506 #endif
|
|
|
1507
|
|
7
|
1508 /*
|
|
|
1509 * Variant of isdigit() that can handle characters > 0x100.
|
|
|
1510 * We don't use isdigit() here, because on some systems it also considers
|
|
|
1511 * superscript 1 to be a digit.
|
|
|
1512 * Use the VIM_ISDIGIT() macro for simple arguments.
|
|
|
1513 */
|
|
|
1514 int
|
|
|
1515 vim_isdigit(c)
|
|
|
1516 int c;
|
|
|
1517 {
|
|
|
1518 return (c >= '0' && c <= '9');
|
|
|
1519 }
|
|
|
1520
|
|
|
1521 /*
|
|
|
1522 * Variant of isxdigit() that can handle characters > 0x100.
|
|
|
1523 * We don't use isxdigit() here, because on some systems it also considers
|
|
|
1524 * superscript 1 to be a digit.
|
|
|
1525 */
|
|
|
1526 int
|
|
|
1527 vim_isxdigit(c)
|
|
|
1528 int c;
|
|
|
1529 {
|
|
|
1530 return (c >= '0' && c <= '9')
|
|
|
1531 || (c >= 'a' && c <= 'f')
|
|
|
1532 || (c >= 'A' && c <= 'F');
|
|
|
1533 }
|
|
|
1534
|
|
492
|
1535 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
|
1536 /*
|
|
|
1537 * Vim's own character class functions. These exist because many library
|
|
|
1538 * islower()/toupper() etc. do not work properly: they crash when used with
|
|
|
1539 * invalid values or can't handle latin1 when the locale is C.
|
|
|
1540 * Speed is most important here.
|
|
|
1541 */
|
|
|
1542 #define LATIN1LOWER 'l'
|
|
|
1543 #define LATIN1UPPER 'U'
|
|
|
1544
|
|
|
1545 /* !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]%_'abcdefghijklmnopqrstuvwxyz{|}~ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ */
|
|
497
|
1546 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll";
|
|
|
1547 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ÷ØÙÚÛÜÝÞÿ";
|
|
|
1548 static char_u latin1lower[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿àáâãäåæçèéêëìíîïðñòóôõö×øùúûüýþßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ";
|
|
492
|
1549
|
|
|
1550 int
|
|
|
1551 vim_islower(c)
|
|
|
1552 int c;
|
|
|
1553 {
|
|
|
1554 if (c <= '@')
|
|
|
1555 return FALSE;
|
|
|
1556 if (c >= 0x80)
|
|
|
1557 {
|
|
|
1558 if (enc_utf8)
|
|
|
1559 return utf_islower(c);
|
|
|
1560 if (c >= 0x100)
|
|
|
1561 {
|
|
|
1562 #ifdef HAVE_ISWLOWER
|
|
|
1563 if (has_mbyte)
|
|
|
1564 return iswlower(c);
|
|
|
1565 #endif
|
|
|
1566 /* islower() can't handle these chars and may crash */
|
|
|
1567 return FALSE;
|
|
|
1568 }
|
|
|
1569 if (enc_latin1like)
|
|
|
1570 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER;
|
|
|
1571 }
|
|
|
1572 return islower(c);
|
|
|
1573 }
|
|
|
1574
|
|
|
1575 int
|
|
|
1576 vim_isupper(c)
|
|
|
1577 int c;
|
|
|
1578 {
|
|
|
1579 if (c <= '@')
|
|
|
1580 return FALSE;
|
|
|
1581 if (c >= 0x80)
|
|
|
1582 {
|
|
|
1583 if (enc_utf8)
|
|
|
1584 return utf_isupper(c);
|
|
|
1585 if (c >= 0x100)
|
|
|
1586 {
|
|
|
1587 #ifdef HAVE_ISWUPPER
|
|
|
1588 if (has_mbyte)
|
|
|
1589 return iswupper(c);
|
|
|
1590 #endif
|
|
|
1591 /* islower() can't handle these chars and may crash */
|
|
|
1592 return FALSE;
|
|
|
1593 }
|
|
|
1594 if (enc_latin1like)
|
|
|
1595 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER;
|
|
|
1596 }
|
|
|
1597 return isupper(c);
|
|
|
1598 }
|
|
|
1599
|
|
|
1600 int
|
|
|
1601 vim_toupper(c)
|
|
|
1602 int c;
|
|
|
1603 {
|
|
|
1604 if (c <= '@')
|
|
|
1605 return c;
|
|
|
1606 if (c >= 0x80)
|
|
|
1607 {
|
|
|
1608 if (enc_utf8)
|
|
|
1609 return utf_toupper(c);
|
|
|
1610 if (c >= 0x100)
|
|
|
1611 {
|
|
|
1612 #ifdef HAVE_TOWUPPER
|
|
|
1613 if (has_mbyte)
|
|
|
1614 return towupper(c);
|
|
|
1615 #endif
|
|
|
1616 /* toupper() can't handle these chars and may crash */
|
|
|
1617 return c;
|
|
|
1618 }
|
|
|
1619 if (enc_latin1like)
|
|
|
1620 return latin1upper[c];
|
|
|
1621 }
|
|
|
1622 return TOUPPER_LOC(c);
|
|
|
1623 }
|
|
|
1624
|
|
|
1625 int
|
|
|
1626 vim_tolower(c)
|
|
|
1627 int c;
|
|
|
1628 {
|
|
|
1629 if (c <= '@')
|
|
|
1630 return c;
|
|
|
1631 if (c >= 0x80)
|
|
|
1632 {
|
|
|
1633 if (enc_utf8)
|
|
|
1634 return utf_tolower(c);
|
|
|
1635 if (c >= 0x100)
|
|
|
1636 {
|
|
|
1637 #ifdef HAVE_TOWLOWER
|
|
|
1638 if (has_mbyte)
|
|
|
1639 return towlower(c);
|
|
|
1640 #endif
|
|
|
1641 /* tolower() can't handle these chars and may crash */
|
|
|
1642 return c;
|
|
|
1643 }
|
|
|
1644 if (enc_latin1like)
|
|
|
1645 return latin1lower[c];
|
|
|
1646 }
|
|
|
1647 return TOLOWER_LOC(c);
|
|
|
1648 }
|
|
|
1649 #endif
|
|
|
1650
|
|
7
|
1651 /*
|
|
|
1652 * skiptowhite: skip over text until ' ' or '\t' or NUL.
|
|
|
1653 */
|
|
|
1654 char_u *
|
|
|
1655 skiptowhite(p)
|
|
|
1656 char_u *p;
|
|
|
1657 {
|
|
|
1658 while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
|
1659 ++p;
|
|
|
1660 return p;
|
|
|
1661 }
|
|
|
1662
|
|
|
1663 #if defined(FEAT_LISTCMDS) || defined(FEAT_SIGNS) || defined(FEAT_SNIFF) \
|
|
|
1664 || defined(PROTO)
|
|
|
1665 /*
|
|
|
1666 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars
|
|
|
1667 */
|
|
|
1668 char_u *
|
|
|
1669 skiptowhite_esc(p)
|
|
|
1670 char_u *p;
|
|
|
1671 {
|
|
|
1672 while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
|
1673 {
|
|
|
1674 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL)
|
|
|
1675 ++p;
|
|
|
1676 ++p;
|
|
|
1677 }
|
|
|
1678 return p;
|
|
|
1679 }
|
|
|
1680 #endif
|
|
|
1681
|
|
|
1682 /*
|
|
|
1683 * Getdigits: Get a number from a string and skip over it.
|
|
|
1684 * Note: the argument is a pointer to a char_u pointer!
|
|
|
1685 */
|
|
|
1686 long
|
|
|
1687 getdigits(pp)
|
|
|
1688 char_u **pp;
|
|
|
1689 {
|
|
|
1690 char_u *p;
|
|
|
1691 long retval;
|
|
|
1692
|
|
|
1693 p = *pp;
|
|
|
1694 retval = atol((char *)p);
|
|
|
1695 if (*p == '-') /* skip negative sign */
|
|
|
1696 ++p;
|
|
|
1697 p = skipdigits(p); /* skip to next non-digit */
|
|
|
1698 *pp = p;
|
|
|
1699 return retval;
|
|
|
1700 }
|
|
|
1701
|
|
|
1702 /*
|
|
|
1703 * Return TRUE if "lbuf" is empty or only contains blanks.
|
|
|
1704 */
|
|
|
1705 int
|
|
|
1706 vim_isblankline(lbuf)
|
|
|
1707 char_u *lbuf;
|
|
|
1708 {
|
|
|
1709 char_u *p;
|
|
|
1710
|
|
|
1711 p = skipwhite(lbuf);
|
|
|
1712 return (*p == NUL || *p == '\r' || *p == '\n');
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 /*
|
|
|
1716 * Convert a string into a long and/or unsigned long, taking care of
|
|
16
|
1717 * hexadecimal and octal numbers. Accepts a '-' sign.
|
|
7
|
1718 * If "hexp" is not NULL, returns a flag to indicate the type of the number:
|
|
|
1719 * 0 decimal
|
|
|
1720 * '0' octal
|
|
|
1721 * 'X' hex
|
|
|
1722 * 'x' hex
|
|
|
1723 * If "len" is not NULL, the length of the number in characters is returned.
|
|
|
1724 * If "nptr" is not NULL, the signed result is returned in it.
|
|
|
1725 * If "unptr" is not NULL, the unsigned result is returned in it.
|
|
782
|
1726 * If "unptr" is not NULL, the unsigned result is returned in it.
|
|
293
|
1727 * If "dooct" is non-zero recognize octal numbers, when > 1 always assume
|
|
|
1728 * octal number.
|
|
782
|
1729 * If "dohex" is non-zero recognize hex numbers, when > 1 always assume
|
|
293
|
1730 * hex number.
|
|
7
|
1731 */
|
|
|
1732 void
|
|
|
1733 vim_str2nr(start, hexp, len, dooct, dohex, nptr, unptr)
|
|
|
1734 char_u *start;
|
|
|
1735 int *hexp; /* return: type of number 0 = decimal, 'x'
|
|
|
1736 or 'X' is hex, '0' = octal */
|
|
|
1737 int *len; /* return: detected length of number */
|
|
|
1738 int dooct; /* recognize octal number */
|
|
|
1739 int dohex; /* recognize hex number */
|
|
|
1740 long *nptr; /* return: signed result */
|
|
|
1741 unsigned long *unptr; /* return: unsigned result */
|
|
|
1742 {
|
|
|
1743 char_u *ptr = start;
|
|
|
1744 int hex = 0; /* default is decimal */
|
|
|
1745 int negative = FALSE;
|
|
|
1746 unsigned long un = 0;
|
|
39
|
1747 int n;
|
|
7
|
1748
|
|
|
1749 if (ptr[0] == '-')
|
|
|
1750 {
|
|
|
1751 negative = TRUE;
|
|
|
1752 ++ptr;
|
|
|
1753 }
|
|
|
1754
|
|
39
|
1755 /* Recognize hex and octal. */
|
|
|
1756 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9')
|
|
7
|
1757 {
|
|
|
1758 hex = ptr[1];
|
|
|
1759 if (dohex && (hex == 'X' || hex == 'x') && vim_isxdigit(ptr[2]))
|
|
|
1760 ptr += 2; /* hexadecimal */
|
|
|
1761 else
|
|
|
1762 {
|
|
39
|
1763 hex = 0; /* default is decimal */
|
|
|
1764 if (dooct)
|
|
|
1765 {
|
|
|
1766 /* Don't interpret "0", "08" or "0129" as octal. */
|
|
|
1767 for (n = 1; VIM_ISDIGIT(ptr[n]); ++n)
|
|
|
1768 {
|
|
|
1769 if (ptr[n] > '7')
|
|
|
1770 {
|
|
|
1771 hex = 0; /* can't be octal */
|
|
|
1772 break;
|
|
|
1773 }
|
|
|
1774 if (ptr[n] > '0')
|
|
|
1775 hex = '0'; /* assume octal */
|
|
|
1776 }
|
|
|
1777 }
|
|
7
|
1778 }
|
|
|
1779 }
|
|
|
1780
|
|
|
1781 /*
|
|
|
1782 * Do the string-to-numeric conversion "manually" to avoid sscanf quirks.
|
|
|
1783 */
|
|
293
|
1784 if (hex == '0' || dooct > 1)
|
|
7
|
1785 {
|
|
293
|
1786 /* octal */
|
|
|
1787 while ('0' <= *ptr && *ptr <= '7')
|
|
7
|
1788 {
|
|
293
|
1789 un = 8 * un + (unsigned long)(*ptr - '0');
|
|
|
1790 ++ptr;
|
|
7
|
1791 }
|
|
293
|
1792 }
|
|
|
1793 else if (hex != 0 || dohex > 1)
|
|
|
1794 {
|
|
|
1795 /* hex */
|
|
|
1796 while (vim_isxdigit(*ptr))
|
|
7
|
1797 {
|
|
293
|
1798 un = 16 * un + (unsigned long)hex2nr(*ptr);
|
|
|
1799 ++ptr;
|
|
7
|
1800 }
|
|
|
1801 }
|
|
|
1802 else
|
|
|
1803 {
|
|
|
1804 /* decimal */
|
|
|
1805 while (VIM_ISDIGIT(*ptr))
|
|
|
1806 {
|
|
|
1807 un = 10 * un + (unsigned long)(*ptr - '0');
|
|
|
1808 ++ptr;
|
|
|
1809 }
|
|
|
1810 }
|
|
|
1811
|
|
|
1812 if (hexp != NULL)
|
|
|
1813 *hexp = hex;
|
|
|
1814 if (len != NULL)
|
|
|
1815 *len = (int)(ptr - start);
|
|
|
1816 if (nptr != NULL)
|
|
16
|
1817 {
|
|
|
1818 if (negative) /* account for leading '-' for decimal numbers */
|
|
|
1819 *nptr = -(long)un;
|
|
|
1820 else
|
|
|
1821 *nptr = (long)un;
|
|
|
1822 }
|
|
7
|
1823 if (unptr != NULL)
|
|
|
1824 *unptr = un;
|
|
|
1825 }
|
|
|
1826
|
|
|
1827 /*
|
|
|
1828 * Return the value of a single hex character.
|
|
|
1829 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'.
|
|
|
1830 */
|
|
|
1831 int
|
|
|
1832 hex2nr(c)
|
|
|
1833 int c;
|
|
|
1834 {
|
|
|
1835 if (c >= 'a' && c <= 'f')
|
|
|
1836 return c - 'a' + 10;
|
|
|
1837 if (c >= 'A' && c <= 'F')
|
|
|
1838 return c - 'A' + 10;
|
|
|
1839 return c - '0';
|
|
|
1840 }
|
|
|
1841
|
|
|
1842 #if defined(FEAT_TERMRESPONSE) \
|
|
|
1843 || (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) || defined(PROTO)
|
|
|
1844 /*
|
|
|
1845 * Convert two hex characters to a byte.
|
|
|
1846 * Return -1 if one of the characters is not hex.
|
|
|
1847 */
|
|
|
1848 int
|
|
|
1849 hexhex2nr(p)
|
|
|
1850 char_u *p;
|
|
|
1851 {
|
|
|
1852 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1]))
|
|
|
1853 return -1;
|
|
|
1854 return (hex2nr(p[0]) << 4) + hex2nr(p[1]);
|
|
|
1855 }
|
|
|
1856 #endif
|
|
|
1857
|
|
|
1858 /*
|
|
|
1859 * Return TRUE if "str" starts with a backslash that should be removed.
|
|
|
1860 * For MS-DOS, WIN32 and OS/2 this is only done when the character after the
|
|
|
1861 * backslash is not a normal file name character.
|
|
|
1862 * '$' is a valid file name character, we don't remove the backslash before
|
|
|
1863 * it. This means it is not possible to use an environment variable after a
|
|
|
1864 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works.
|
|
|
1865 * Although "\ name" is valid, the backslash in "Program\ files" must be
|
|
|
1866 * removed. Assume a file name doesn't start with a space.
|
|
|
1867 * For multi-byte names, never remove a backslash before a non-ascii
|
|
|
1868 * character, assume that all multi-byte characters are valid file name
|
|
|
1869 * characters.
|
|
|
1870 */
|
|
|
1871 int
|
|
|
1872 rem_backslash(str)
|
|
|
1873 char_u *str;
|
|
|
1874 {
|
|
|
1875 #ifdef BACKSLASH_IN_FILENAME
|
|
|
1876 return (str[0] == '\\'
|
|
|
1877 # ifdef FEAT_MBYTE
|
|
|
1878 && str[1] < 0x80
|
|
|
1879 # endif
|
|
|
1880 && (str[1] == ' '
|
|
|
1881 || (str[1] != NUL
|
|
|
1882 && str[1] != '*'
|
|
|
1883 && str[1] != '?'
|
|
|
1884 && !vim_isfilec(str[1]))));
|
|
|
1885 #else
|
|
|
1886 return (str[0] == '\\' && str[1] != NUL);
|
|
|
1887 #endif
|
|
|
1888 }
|
|
|
1889
|
|
|
1890 /*
|
|
|
1891 * Halve the number of backslashes in a file name argument.
|
|
|
1892 * For MS-DOS we only do this if the character after the backslash
|
|
|
1893 * is not a normal file character.
|
|
|
1894 */
|
|
|
1895 void
|
|
|
1896 backslash_halve(p)
|
|
|
1897 char_u *p;
|
|
|
1898 {
|
|
|
1899 for ( ; *p; ++p)
|
|
|
1900 if (rem_backslash(p))
|
|
|
1901 STRCPY(p, p + 1);
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 /*
|
|
|
1905 * backslash_halve() plus save the result in allocated memory.
|
|
|
1906 */
|
|
|
1907 char_u *
|
|
|
1908 backslash_halve_save(p)
|
|
|
1909 char_u *p;
|
|
|
1910 {
|
|
|
1911 char_u *res;
|
|
|
1912
|
|
|
1913 res = vim_strsave(p);
|
|
|
1914 if (res == NULL)
|
|
|
1915 return p;
|
|
|
1916 backslash_halve(res);
|
|
|
1917 return res;
|
|
|
1918 }
|
|
|
1919
|
|
|
1920 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO)
|
|
|
1921 /*
|
|
|
1922 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c!
|
|
|
1923 * The first 64 entries have been added to map control characters defined in
|
|
|
1924 * ascii.h
|
|
|
1925 */
|
|
|
1926 static char_u ebcdic2ascii_tab[256] =
|
|
|
1927 {
|
|
|
1928 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177,
|
|
|
1929 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017,
|
|
|
1930 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027,
|
|
|
1931 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037,
|
|
|
1932 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047,
|
|
|
1933 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057,
|
|
|
1934 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
|
|
|
1935 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077,
|
|
|
1936 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246,
|
|
|
1937 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174,
|
|
|
1938 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257,
|
|
|
1939 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176,
|
|
|
1940 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267,
|
|
|
1941 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077,
|
|
|
1942 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301,
|
|
|
1943 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042,
|
|
|
1944 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
|
|
|
1945 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311,
|
|
|
1946 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160,
|
|
|
1947 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320,
|
|
|
1948 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170,
|
|
|
1949 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327,
|
|
|
1950 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,
|
|
|
1951 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347,
|
|
|
1952 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107,
|
|
|
1953 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355,
|
|
|
1954 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120,
|
|
|
1955 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363,
|
|
|
1956 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130,
|
|
|
1957 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371,
|
|
|
1958 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
|
|
|
1959 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377
|
|
|
1960 };
|
|
|
1961
|
|
|
1962 /*
|
|
|
1963 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if
|
|
|
1964 * wanting 7-bit ASCII characters out the other end.
|
|
|
1965 */
|
|
|
1966 void
|
|
|
1967 ebcdic2ascii(buffer, len)
|
|
|
1968 char_u *buffer;
|
|
|
1969 int len;
|
|
|
1970 {
|
|
|
1971 int i;
|
|
|
1972
|
|
|
1973 for (i = 0; i < len; i++)
|
|
|
1974 buffer[i] = ebcdic2ascii_tab[buffer[i]];
|
|
|
1975 }
|
|
|
1976 #endif
|
