| 137 | }; |
| 138 | |
| 139 | static int match_string_spaces(const char *line1, int len1, |
| 140 | const char *line2, int len2, |
| 141 | long flags) |
| 142 | { |
| 143 | if (flags & XDF_WHITESPACE_FLAGS) { |
| 144 | for (; len1 > 0 && XDL_ISSPACE(line1[len1 - 1]); len1--); |
| 145 | for (; len2 > 0 && XDL_ISSPACE(line2[len2 - 1]); len2--); |
| 146 | } |
| 147 | |
| 148 | if (!(flags & (XDF_IGNORE_WHITESPACE | XDF_IGNORE_WHITESPACE_CHANGE))) |
| 149 | return (len1 == len2 && !memcmp(line1, line2, len1)); |
| 150 | |
| 151 | while (len1 > 0 && len2 > 0) { |
| 152 | len1--; |
| 153 | len2--; |
| 154 | if (XDL_ISSPACE(line1[len1]) || XDL_ISSPACE(line2[len2])) { |
| 155 | if ((flags & XDF_IGNORE_WHITESPACE_CHANGE) && |
| 156 | (!XDL_ISSPACE(line1[len1]) || !XDL_ISSPACE(line2[len2]))) |
| 157 | return 0; |
| 158 | |
| 159 | for (; len1 > 0 && XDL_ISSPACE(line1[len1]); len1--); |
| 160 | for (; len2 > 0 && XDL_ISSPACE(line2[len2]); len2--); |
| 161 | } |
| 162 | if (line1[len1] != line2[len2]) |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | if (flags & XDF_IGNORE_WHITESPACE) { |
| 167 | /* Consume remaining spaces */ |
| 168 | for (; len1 > 0 && XDL_ISSPACE(line1[len1 - 1]); len1--); |
| 169 | for (; len2 > 0 && XDL_ISSPACE(line2[len2 - 1]); len2--); |
| 170 | } |
| 171 | |
| 172 | /* We matched full line1 and line2 */ |
| 173 | if (!len1 && !len2) |
| 174 | return 1; |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | enum coalesce_direction { MATCH, BASE, NEW }; |
| 180 | |