diff options
Diffstat (limited to 'contrib/mdocml/mandoc.c')
| -rw-r--r-- | contrib/mdocml/mandoc.c | 133 |
1 files changed, 62 insertions, 71 deletions
diff --git a/contrib/mdocml/mandoc.c b/contrib/mdocml/mandoc.c index 0619420..d265463 100644 --- a/contrib/mdocml/mandoc.c +++ b/contrib/mdocml/mandoc.c @@ -1,4 +1,4 @@ -/* $Id: mandoc.c,v 1.92 2015/02/20 23:55:10 schwarze Exp $ */ +/* $Id: mandoc.c,v 1.98 2015/11/12 22:44:27 schwarze Exp $ */ /* * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2011-2015 Ingo Schwarze <schwarze@openbsd.org> @@ -32,8 +32,6 @@ #include "mandoc_aux.h" #include "libmandoc.h" -#define DATESIZE 32 - static int a2time(time_t *, const char *, const char *); static char *time2a(time_t); @@ -83,7 +81,7 @@ mandoc_escape(const char **end, const char **start, int *sz) break; case 'C': if ('\'' != **start) - return(ESCAPE_ERROR); + return ESCAPE_ERROR; *start = ++*end; gly = ESCAPE_SPECIAL; term = '\''; @@ -93,9 +91,10 @@ mandoc_escape(const char **end, const char **start, int *sz) * Escapes taking no arguments at all. */ case 'd': - /* FALLTHROUGH */ case 'u': - return(ESCAPE_IGNORE); + case ',': + case '/': + return ESCAPE_IGNORE; /* * The \z escape is supposed to output the following @@ -104,26 +103,19 @@ mandoc_escape(const char **end, const char **start, int *sz) * let us just skip the next character. */ case 'z': - return(ESCAPE_SKIPCHAR); + return ESCAPE_SKIPCHAR; /* * Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where * 'X' is the trigger. These have opaque sub-strings. */ case 'F': - /* FALLTHROUGH */ case 'g': - /* FALLTHROUGH */ case 'k': - /* FALLTHROUGH */ case 'M': - /* FALLTHROUGH */ case 'm': - /* FALLTHROUGH */ case 'n': - /* FALLTHROUGH */ case 'V': - /* FALLTHROUGH */ case 'Y': gly = ESCAPE_IGNORE; /* FALLTHROUGH */ @@ -151,21 +143,16 @@ mandoc_escape(const char **end, const char **start, int *sz) * The \B and \w escapes are handled in roff.c, roff_res(). */ case 'A': - /* FALLTHROUGH */ case 'b': - /* FALLTHROUGH */ case 'D': - /* FALLTHROUGH */ case 'R': - /* FALLTHROUGH */ case 'X': - /* FALLTHROUGH */ case 'Z': gly = ESCAPE_IGNORE; /* FALLTHROUGH */ case 'o': if (**start == '\0') - return(ESCAPE_ERROR); + return ESCAPE_ERROR; if (gly == ESCAPE_ERROR) gly = ESCAPE_OVERSTRIKE; term = **start; @@ -177,22 +164,16 @@ mandoc_escape(const char **end, const char **start, int *sz) * and 'N' resolves to a numerical expression. */ case 'h': - /* FALLTHROUGH */ case 'H': - /* FALLTHROUGH */ case 'L': - /* FALLTHROUGH */ case 'l': - /* FALLTHROUGH */ case 'S': - /* FALLTHROUGH */ case 'v': - /* FALLTHROUGH */ case 'x': if (strchr(" %&()*+-./0123456789:<=>", **start)) { if ('\0' != **start) ++*end; - return(ESCAPE_ERROR); + return ESCAPE_ERROR; } gly = ESCAPE_IGNORE; term = **start; @@ -205,11 +186,11 @@ mandoc_escape(const char **end, const char **start, int *sz) */ case 'N': if ('\0' == **start) - return(ESCAPE_ERROR); + return ESCAPE_ERROR; (*end)++; if (isdigit((unsigned char)**start)) { *sz = 1; - return(ESCAPE_IGNORE); + return ESCAPE_IGNORE; } (*start)++; while (isdigit((unsigned char)**end)) @@ -217,7 +198,7 @@ mandoc_escape(const char **end, const char **start, int *sz) *sz = *end - *start; if ('\0' != **end) (*end)++; - return(ESCAPE_NUMBERED); + return ESCAPE_NUMBERED; /* * Sizes get a special category of their own. @@ -243,9 +224,7 @@ mandoc_escape(const char **end, const char **start, int *sz) term = '\''; break; case '3': - /* FALLTHROUGH */ case '2': - /* FALLTHROUGH */ case '1': *sz = (*end)[-1] == 's' && isdigit((unsigned char)(*end)[1]) ? 2 : 1; @@ -279,12 +258,12 @@ mandoc_escape(const char **end, const char **start, int *sz) while (**end != term) { switch (**end) { case '\0': - return(ESCAPE_ERROR); + return ESCAPE_ERROR; case '\\': (*end)++; if (ESCAPE_ERROR == mandoc_escape(end, NULL, NULL)) - return(ESCAPE_ERROR); + return ESCAPE_ERROR; break; default: (*end)++; @@ -295,7 +274,7 @@ mandoc_escape(const char **end, const char **start, int *sz) } else { assert(*sz > 0); if ((size_t)*sz > strlen(*start)) - return(ESCAPE_ERROR); + return ESCAPE_ERROR; *end += *sz; } @@ -321,12 +300,10 @@ mandoc_escape(const char **end, const char **start, int *sz) switch (**start) { case '3': - /* FALLTHROUGH */ case 'B': gly = ESCAPE_FONTBOLD; break; case '2': - /* FALLTHROUGH */ case 'I': gly = ESCAPE_FONTITALIC; break; @@ -334,7 +311,6 @@ mandoc_escape(const char **end, const char **start, int *sz) gly = ESCAPE_FONTPREV; break; case '1': - /* FALLTHROUGH */ case 'R': gly = ESCAPE_FONTROMAN; break; @@ -355,6 +331,9 @@ mandoc_escape(const char **end, const char **start, int *sz) break; if (*sz == 6 && (*start)[1] == '0') break; + if (*sz == 5 && (*start)[1] == 'D' && + strchr("89ABCDEF", (*start)[2]) != NULL) + break; if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef") + 1 == *sz) gly = ESCAPE_UNICODE; @@ -363,7 +342,7 @@ mandoc_escape(const char **end, const char **start, int *sz) break; } - return(gly); + return gly; } /* @@ -458,7 +437,7 @@ mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos) if ('\0' == *cp && (white || ' ' == cp[-1])) mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL); - return(start); + return start; } static int @@ -475,10 +454,10 @@ a2time(time_t *t, const char *fmt, const char *p) #endif if (NULL != pp && '\0' == *pp) { *t = mktime(&tm); - return(1); + return 1; } - return(0); + return 0; } static char * @@ -491,7 +470,7 @@ time2a(time_t t) tm = localtime(&t); if (tm == NULL) - return(NULL); + return NULL; /* * Reserve space: @@ -499,45 +478,61 @@ time2a(time_t t) * up to 2 characters for the day + comma + blank * 4 characters for the year and a terminating '\0' */ + p = buf = mandoc_malloc(10 + 4 + 4 + 1); - if (0 == (ssz = strftime(p, 10 + 1, "%B ", tm))) + if ((ssz = strftime(p, 10 + 1, "%B ", tm)) == 0) goto fail; p += (int)ssz; - if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday))) + /* + * The output format is just "%d" here, not "%2d" or "%02d". + * That's also the reason why we can't just format the + * date as a whole with "%B %e, %Y" or "%B %d, %Y". + * Besides, the present approach is less prone to buffer + * overflows, in case anybody should ever introduce the bug + * of looking at LC_TIME. + */ + + if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1) goto fail; p += isz; - if (0 == strftime(p, 4 + 1, "%Y", tm)) + if (strftime(p, 4 + 1, "%Y", tm) == 0) goto fail; - return(buf); + return buf; fail: free(buf); - return(NULL); + return NULL; } char * mandoc_normdate(struct mparse *parse, char *in, int ln, int pos) { - char *out; time_t t; - if (NULL == in || '\0' == *in || - 0 == strcmp(in, "$" "Mdocdate$")) { + /* No date specified: use today's date. */ + + if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) { mandoc_msg(MANDOCERR_DATE_MISSING, parse, ln, pos, NULL); - time(&t); + return time2a(time(NULL)); } - else if (a2time(&t, "%Y-%m-%d", in)) - t = 0; - else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && - !a2time(&t, "%b %d, %Y", in)) { + + /* Valid mdoc(7) date format. */ + + if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) || + a2time(&t, "%b %d, %Y", in)) + return time2a(t); + + /* Do not warn about the legacy man(7) format. */ + + if ( ! a2time(&t, "%Y-%m-%d", in)) mandoc_msg(MANDOCERR_DATE_BAD, parse, ln, pos, in); - t = 0; - } - out = t ? time2a(t) : NULL; - return(out ? out : mandoc_strdup(in)); + + /* Use any non-mdoc(7) date verbatim. */ + + return mandoc_strdup(in); } int @@ -547,7 +542,7 @@ mandoc_eos(const char *p, size_t sz) int enclosed, found; if (0 == sz) - return(0); + return 0; /* * End-of-sentence recognition must include situations where @@ -559,28 +554,24 @@ mandoc_eos(const char *p, size_t sz) for (q = p + (int)sz - 1; q >= p; q--) { switch (*q) { case '\"': - /* FALLTHROUGH */ case '\'': - /* FALLTHROUGH */ case ']': - /* FALLTHROUGH */ case ')': if (0 == found) enclosed = 1; break; case '.': - /* FALLTHROUGH */ case '!': - /* FALLTHROUGH */ case '?': found = 1; break; default: - return(found && (!enclosed || isalnum((unsigned char)*q))); + return found && + (!enclosed || isalnum((unsigned char)*q)); } } - return(found && !enclosed); + return found && !enclosed; } /* @@ -595,7 +586,7 @@ mandoc_strntoi(const char *p, size_t sz, int base) long v; if (sz > 31) - return(-1); + return -1; memcpy(buf, p, sz); buf[(int)sz] = '\0'; @@ -604,12 +595,12 @@ mandoc_strntoi(const char *p, size_t sz, int base) v = strtol(buf, &ep, base); if (buf[0] == '\0' || *ep != '\0') - return(-1); + return -1; if (v > INT_MAX) v = INT_MAX; if (v < INT_MIN) v = INT_MIN; - return((int)v); + return (int)v; } |
