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Return to mandoc.c CVS log | Up to [cvsweb.bsd.lv] / mandoc |
| version 1.112, 2018/12/16 00:17:02 | version 1.113, 2018/12/18 22:00:02 | ||
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| return gly; | return gly; | ||
| } | } | ||
| /* | |||
| * Parse a quoted or unquoted roff-style request or macro argument. | |||
| * Return a pointer to the parsed argument, which is either the original | |||
| * pointer or advanced by one byte in case the argument is quoted. | |||
| * NUL-terminate the argument in place. | |||
| * Collapse pairs of quotes inside quoted arguments. | |||
| * Advance the argument pointer to the next argument, | |||
| * or to the NUL byte terminating the argument line. | |||
| */ | |||
| char * | |||
| mandoc_getarg(char **cpp, int ln, int *pos) | |||
| { | |||
| char *start, *cp; | |||
| int quoted, pairs, white; | |||
| /* Quoting can only start with a new word. */ | |||
| start = *cpp; | |||
| quoted = 0; | |||
| if ('"' == *start) { | |||
| quoted = 1; | |||
| start++; | |||
| } | |||
| pairs = 0; | |||
| white = 0; | |||
| for (cp = start; '\0' != *cp; cp++) { | |||
| /* | |||
| * Move the following text left | |||
| * after quoted quotes and after "\\" and "\t". | |||
| */ | |||
| if (pairs) | |||
| cp[-pairs] = cp[0]; | |||
| if ('\\' == cp[0]) { | |||
| /* | |||
| * In copy mode, translate double to single | |||
| * backslashes and backslash-t to literal tabs. | |||
| */ | |||
| switch (cp[1]) { | |||
| case 'a': | |||
| case 't': | |||
| cp[0] = '\t'; | |||
| /* FALLTHROUGH */ | |||
| case '\\': | |||
| pairs++; | |||
| cp++; | |||
| break; | |||
| case ' ': | |||
| /* Skip escaped blanks. */ | |||
| if (0 == quoted) | |||
| cp++; | |||
| break; | |||
| default: | |||
| break; | |||
| } | |||
| } else if (0 == quoted) { | |||
| if (' ' == cp[0]) { | |||
| /* Unescaped blanks end unquoted args. */ | |||
| white = 1; | |||
| break; | |||
| } | |||
| } else if ('"' == cp[0]) { | |||
| if ('"' == cp[1]) { | |||
| /* Quoted quotes collapse. */ | |||
| pairs++; | |||
| cp++; | |||
| } else { | |||
| /* Unquoted quotes end quoted args. */ | |||
| quoted = 2; | |||
| break; | |||
| } | |||
| } | |||
| } | |||
| /* Quoted argument without a closing quote. */ | |||
| if (1 == quoted) | |||
| mandoc_msg(MANDOCERR_ARG_QUOTE, ln, *pos, NULL); | |||
| /* NUL-terminate this argument and move to the next one. */ | |||
| if (pairs) | |||
| cp[-pairs] = '\0'; | |||
| if ('\0' != *cp) { | |||
| *cp++ = '\0'; | |||
| while (' ' == *cp) | |||
| cp++; | |||
| } | |||
| *pos += (int)(cp - start) + (quoted ? 1 : 0); | |||
| *cpp = cp; | |||
| if ('\0' == *cp && (white || ' ' == cp[-1])) | |||
| mandoc_msg(MANDOCERR_SPACE_EOL, ln, *pos, NULL); | |||
| return start; | |||
| } | |||
| static int | static int | ||
| a2time(time_t *t, const char *fmt, const char *p) | a2time(time_t *t, const char *fmt, const char *p) | ||
| { | { |