diff options
Diffstat (limited to 'mandoc.c')
| -rw-r--r-- | mandoc.c | 23 |
1 files changed, 11 insertions, 12 deletions
@@ -79,24 +79,13 @@ mandoc_escape(const char **end, const char **start, int *sz) break; case '[': gly = ESCAPE_SPECIAL; - /* - * Unicode escapes are defined in groff as \[uXXXX] to - * \[u10FFFF], where the contained value must be a valid - * Unicode codepoint. Here, however, only check whether - * it's not a zero-width escape. - */ - if ('u' == (*start)[0] && ']' != (*start)[1]) - gly = ESCAPE_UNICODE; term = ']'; break; case 'C': if ('\'' != **start) return(ESCAPE_ERROR); *start = ++*end; - if ('u' == (*start)[0] && '\'' != (*start)[1]) - gly = ESCAPE_UNICODE; - else - gly = ESCAPE_SPECIAL; + gly = ESCAPE_SPECIAL; term = '\''; break; @@ -344,6 +333,16 @@ mandoc_escape(const char **end, const char **start, int *sz) case ESCAPE_SPECIAL: if (1 == *sz && 'c' == **start) gly = ESCAPE_NOSPACE; + /* + * Unicode escapes are defined in groff as \[uXXXX] + * to \[u10FFFF], where the contained value must be + * a valid Unicode codepoint. Here, however, only + * check the length and the validity of all digits. + */ + else if (*sz > 4 && *sz < 8 && **start == 'u' && + (int)strspn(*start + 1, "0123456789ABCDEFabcdef") + + 1 == *sz) + gly = ESCAPE_UNICODE; break; default: break; |