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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 */
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8
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9 /*
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10 * macros.h: macro definitions for often used code
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11 */
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12
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13 /*
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14 * pchar(lp, c) - put character 'c' at position 'lp'
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15 */
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16 #define pchar(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
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17
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18 /*
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19 * Position comparisons
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20 */
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21 #ifdef FEAT_VIRTUALEDIT
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22 # define lt(a, b) (((a).lnum != (b).lnum) \
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23 ? (a).lnum < (b).lnum \
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24 : (a).col != (b).col \
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25 ? (a).col < (b).col \
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26 : (a).coladd < (b).coladd)
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27 # define ltp(a, b) (((a)->lnum != (b)->lnum) \
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28 ? (a)->lnum < (b)->lnum \
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29 : (a)->col != (b)->col \
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30 ? (a)->col < (b)->col \
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31 : (a)->coladd < (b)->coladd)
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32 # define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
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33 #else
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34 # define lt(a, b) (((a).lnum != (b).lnum) \
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35 ? ((a).lnum < (b).lnum) : ((a).col < (b).col))
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36 # define ltp(a, b) (((a)->lnum != (b)->lnum) \
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37 ? ((a)->lnum < (b)->lnum) : ((a)->col < (b)->col))
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38 # define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
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39 #endif
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40
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41 #define ltoreq(a, b) (lt(a, b) || equalpos(a, b))
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42
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43 /*
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44 * lineempty() - return TRUE if the line is empty
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45 */
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46 #define lineempty(p) (*ml_get(p) == NUL)
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47
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48 /*
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49 * bufempty() - return TRUE if the current buffer is empty
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50 */
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51 #define bufempty() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
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52
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53 /*
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54 * toupper() and tolower() that use the current locale.
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55 * On some systems toupper()/tolower() only work on lower/uppercase characters
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56 * Careful: Only call TOUPPER_LOC() and TOLOWER_LOC() with a character in the
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57 * range 0 - 255. toupper()/tolower() on some systems can't handle others.
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58 * Note: for UTF-8 use utf_toupper() and utf_tolower().
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59 */
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60 #ifdef MSWIN
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61 # define TOUPPER_LOC(c) toupper_tab[(c) & 255]
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62 # define TOLOWER_LOC(c) tolower_tab[(c) & 255]
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63 #else
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64 # ifdef BROKEN_TOUPPER
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65 # define TOUPPER_LOC(c) (islower(c) ? toupper(c) : (c))
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66 # define TOLOWER_LOC(c) (isupper(c) ? tolower(c) : (c))
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67 # else
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68 # define TOUPPER_LOC toupper
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69 # define TOLOWER_LOC tolower
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70 # endif
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71 #endif
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72
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73 /* toupper() and tolower() for ASCII only and ignore the current locale. */
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74 #ifdef EBCDIC
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75 # define TOUPPER_ASC(c) (islower(c) ? toupper(c) : (c))
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76 # define TOLOWER_ASC(c) (isupper(c) ? tolower(c) : (c))
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77 #else
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78 # define TOUPPER_ASC(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) - ('a' - 'A'))
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79 # define TOLOWER_ASC(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) + ('a' - 'A'))
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80 #endif
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81
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82 /*
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83 * MB_ISLOWER() and MB_ISUPPER() are to be used on multi-byte characters. But
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492
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84 * don't use them for negative values!
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7
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85 */
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86 #ifdef FEAT_MBYTE
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492
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87 # define MB_ISLOWER(c) vim_islower(c)
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88 # define MB_ISUPPER(c) vim_isupper(c)
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89 # define MB_TOLOWER(c) vim_tolower(c)
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90 # define MB_TOUPPER(c) vim_toupper(c)
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7
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91 #else
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92 # define MB_ISLOWER(c) islower(c)
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93 # define MB_ISUPPER(c) isupper(c)
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94 # define MB_TOLOWER(c) TOLOWER_LOC(c)
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95 # define MB_TOUPPER(c) TOUPPER_LOC(c)
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96 #endif
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97
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98 /* Like isalpha() but reject non-ASCII characters. Can't be used with a
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99 * special key (negative value). */
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100 #ifdef EBCDIC
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101 # define ASCII_ISALPHA(c) isalpha(c)
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102 # define ASCII_ISALNUM(c) isalnum(c)
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103 # define ASCII_ISLOWER(c) islower(c)
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104 # define ASCII_ISUPPER(c) isupper(c)
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105 #else
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106 # define ASCII_ISALPHA(c) ((c) < 0x7f && isalpha(c))
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107 # define ASCII_ISALNUM(c) ((c) < 0x7f && isalnum(c))
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108 # define ASCII_ISLOWER(c) ((c) < 0x7f && islower(c))
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109 # define ASCII_ISUPPER(c) ((c) < 0x7f && isupper(c))
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110 #endif
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111
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112 /* Use our own isdigit() replacement, because on MS-Windows isdigit() returns
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113 * non-zero for superscript 1. Also avoids that isdigit() crashes for numbers
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114 * below 0 and above 255. For complicated arguments and in/decrement use
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115 * vim_isdigit() instead. */
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116 #define VIM_ISDIGIT(c) ((c) >= '0' && (c) <= '9')
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117
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118 /* macro version of chartab().
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119 * Only works with values 0-255!
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120 * Doesn't work for UTF-8 mode with chars >= 0x80. */
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121 #define CHARSIZE(c) (chartab[c] & CT_CELL_MASK)
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122
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123 #ifdef FEAT_LANGMAP
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124 /*
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125 * Adjust chars in a language according to 'langmap' option.
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126 * NOTE that there is NO overhead if 'langmap' is not set; but even
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127 * when set we only have to do 2 ifs and an array lookup.
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128 * Don't apply 'langmap' if the character comes from the Stuff buffer.
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129 * The do-while is just to ignore a ';' after the macro.
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130 */
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131 # define LANGMAP_ADJUST(c, condition) do { \
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132 if (*p_langmap && (condition) && !KeyStuffed && (c) >= 0 && (c) < 256) \
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133 c = langmap_mapchar[c]; \
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134 } while (0)
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135 #endif
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136
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137 /*
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138 * vim_isbreak() is used very often if 'linebreak' is set, use a macro to make
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139 * it work fast.
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140 */
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141 #define vim_isbreak(c) (breakat_flags[(char_u)(c)])
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142
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143 /*
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144 * On VMS file names are different and require a translation.
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145 * On the Mac open() has only two arguments.
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146 */
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147 #ifdef VMS
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148 # define mch_access(n, p) access(vms_fixfilename(n), (p))
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149 /* see mch_open() comment */
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150 # define mch_fopen(n, p) fopen(vms_fixfilename(n), (p))
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151 # define mch_fstat(n, p) fstat(vms_fixfilename(n), (p))
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152 /* VMS does not have lstat() */
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153 # define mch_stat(n, p) stat(vms_fixfilename(n), (p))
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154 #else
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155 # ifndef WIN32
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156 # define mch_access(n, p) access((n), (p))
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157 # endif
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158 # if !(defined(FEAT_MBYTE) && defined(WIN3264))
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159 # define mch_fopen(n, p) fopen((n), (p))
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160 # endif
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161 # define mch_fstat(n, p) fstat((n), (p))
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162 # ifdef MSWIN /* has it's own mch_stat() function */
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163 # define mch_stat(n, p) vim_stat((n), (p))
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164 # else
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165 # ifdef STAT_IGNORES_SLASH
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166 /* On Solaris stat() accepts "file/" as if it was "file". Return -1 if
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167 * the name ends in "/" and it's not a directory. */
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168 # define mch_stat(n, p) (illegal_slash(n) ? -1 : stat((n), (p)))
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169 # else
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170 # define mch_stat(n, p) stat((n), (p))
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171 # endif
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172 # endif
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173 #endif
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174
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21
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175 #ifdef HAVE_LSTAT
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176 # define mch_lstat(n, p) lstat((n), (p))
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177 #else
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178 # define mch_lstat(n, p) mch_stat((n), (p))
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179 #endif
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180
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7
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181 #ifdef MACOS_CLASSIC
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182 /* MacOS classic doesn't support perm but MacOS X does. */
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183 # define mch_open(n, m, p) open((n), (m))
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184 #else
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185 # ifdef VMS
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186 /*
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187 * It is possible to force some record format with:
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188 * # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p)), "rat=cr", "rfm=stmlf", "mrs=0")
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189 * but it is not recomended, because it can destroy indexes etc.
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190 */
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191 # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p))
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192 # else
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193 # if !(defined(FEAT_MBYTE) && defined(WIN3264))
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194 # define mch_open(n, m, p) open((n), (m), (p))
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195 # endif
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196 # endif
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197 #endif
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198
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199 /* mch_open_rw(): invoke mch_open() with third argument for user R/W. */
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200 #if defined(UNIX) || defined(VMS) /* open in rw------- mode */
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201 # define mch_open_rw(n, f) mch_open((n), (f), (mode_t)0600)
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202 #else
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203 # if defined(MSDOS) || defined(MSWIN) || defined(OS2) /* open read/write */
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204 # define mch_open_rw(n, f) mch_open((n), (f), S_IREAD | S_IWRITE)
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205 # else
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206 # define mch_open_rw(n, f) mch_open((n), (f), 0)
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207 # endif
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208 #endif
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209
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210 /*
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211 * Encryption macros. Mohsin Ahmed, mosh@sasi.com 98-09-24
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212 * Based on zip/crypt sources.
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213 */
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214
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215 #ifdef FEAT_CRYPT
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216
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217 /* encode byte c, using temp t. Warning: c must not have side effects. */
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218 # define ZENCODE(c, t) (t = decrypt_byte(), update_keys(c), t^(c))
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219
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220 /* decode byte c in place */
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221 # define ZDECODE(c) update_keys(c ^= decrypt_byte())
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222
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223 #endif
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224
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225 #ifdef STARTUPTIME
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226 # define TIME_MSG(s) time_msg(s, NULL)
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227 #else
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228 # define TIME_MSG(s)
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229 #endif
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230
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231 #ifdef FEAT_VREPLACE
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232 # define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG))
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233 #else
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234 # define REPLACE_NORMAL(s) ((s) & REPLACE_FLAG)
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235 #endif
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236
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237 #ifdef FEAT_ARABIC
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238 # define UTF_COMPOSINGLIKE(p1, p2) utf_composinglike((p1), (p2))
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239 #else
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240 # define UTF_COMPOSINGLIKE(p1, p2) utf_iscomposing(utf_ptr2char(p2))
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241 #endif
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242
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243 #ifdef FEAT_RIGHTLEFT
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244 /* Whether to draw the vertical bar on the right side of the cell. */
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245 # define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & CMDLINE) || cmdmsg_rl))
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246 #endif
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13
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247
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39
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248 /*
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249 * mb_ptr_adv(): advance a pointer to the next character, taking care of
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250 * multi-byte characters if needed.
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251 * mb_ptr_back(): backup a pointer to the previous character, taking care of
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252 * multi-byte characters if needed.
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98
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253 * MB_COPY_CHAR(f, t): copy one char from "f" to "t" and advance the pointers.
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456
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254 * PTR2CHAR(): get character from pointer.
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39
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255 */
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256 #ifdef FEAT_MBYTE
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474
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257 /* Advance multi-byte pointer, skip over composing chars. */
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258 # define mb_ptr_adv(p) p += has_mbyte ? (*mb_ptr2len)(p) : 1
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259 /* Advance multi-byte pointer, do not skip over composing chars. */
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260 # define mb_cptr_adv(p) p += enc_utf8 ? utf_ptr2len(p) : has_mbyte ? (*mb_ptr2len)(p) : 1
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261 /* Backup multi-byte pointer. */
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377
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262 # define mb_ptr_back(s, p) p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1
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474
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263 /* get length of multi-byte char, not including composing chars */
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264 # define mb_cptr2len(p) (enc_utf8 ? utf_ptr2len(p) : (*mb_ptr2len)(p))
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265
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98
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266 # define MB_COPY_CHAR(f, t) if (has_mbyte) mb_copy_char(&f, &t); else *t++ = *f++
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377
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267 # define MB_CHARLEN(p) (has_mbyte ? mb_charlen(p) : STRLEN(p))
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474
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268 # define PTR2CHAR(p) (has_mbyte ? mb_ptr2char(p) : (int)*(p))
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39
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269 #else
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456
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270 # define mb_ptr_adv(p) ++p
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474
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271 # define mb_cptr_adv(p) ++p
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456
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272 # define mb_ptr_back(s, p) --p
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273 # define MB_COPY_CHAR(f, t) *t++ = *f++
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274 # define MB_CHARLEN(p) STRLEN(p)
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474
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275 # define PTR2CHAR(p) ((int)*(p))
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39
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276 #endif
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