version 1.100, 2017/06/02 19:21:23 |
version 1.117, 2020/01/19 16:44:50 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011-2015, 2017-2020 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <string.h> |
#include <string.h> |
#include <time.h> |
#include <time.h> |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
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#include "mandoc.h" |
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#include "roff.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#include "roff_int.h" |
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static int a2time(time_t *, const char *, const char *); |
static int a2time(time_t *, const char *, const char *); |
static char *time2a(time_t); |
static char *time2a(time_t); |
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enum mandoc_esc |
enum mandoc_esc |
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mandoc_font(const char *cp, int sz) |
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{ |
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switch (sz) { |
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case 0: |
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return ESCAPE_FONTPREV; |
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case 1: |
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switch (cp[0]) { |
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case 'B': |
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case '3': |
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return ESCAPE_FONTBOLD; |
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case 'I': |
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case '2': |
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return ESCAPE_FONTITALIC; |
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case 'P': |
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return ESCAPE_FONTPREV; |
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case 'R': |
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case '1': |
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return ESCAPE_FONTROMAN; |
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case '4': |
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return ESCAPE_FONTBI; |
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default: |
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return ESCAPE_ERROR; |
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} |
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case 2: |
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switch (cp[0]) { |
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case 'B': |
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switch (cp[1]) { |
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case 'I': |
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return ESCAPE_FONTBI; |
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default: |
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return ESCAPE_ERROR; |
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} |
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case 'C': |
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switch (cp[1]) { |
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case 'B': |
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return ESCAPE_FONTBOLD; |
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case 'I': |
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return ESCAPE_FONTITALIC; |
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case 'R': |
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case 'W': |
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return ESCAPE_FONTCW; |
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default: |
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return ESCAPE_ERROR; |
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} |
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default: |
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return ESCAPE_ERROR; |
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} |
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default: |
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return ESCAPE_ERROR; |
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} |
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} |
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enum mandoc_esc |
mandoc_escape(const char **end, const char **start, int *sz) |
mandoc_escape(const char **end, const char **start, int *sz) |
{ |
{ |
const char *local_start; |
const char *local_start; |
int local_sz; |
int local_sz, c, i; |
char term; |
char term; |
enum mandoc_esc gly; |
enum mandoc_esc gly; |
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Line 55 mandoc_escape(const char **end, const char **start, in |
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Line 110 mandoc_escape(const char **end, const char **start, in |
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sz = &local_sz; |
sz = &local_sz; |
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/* |
/* |
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* Treat "\E" just like "\"; |
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* it only makes a difference in copy mode. |
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*/ |
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if (**end == 'E') |
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++*end; |
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/* |
* Beyond the backslash, at least one input character |
* Beyond the backslash, at least one input character |
* is part of the escape sequence. With one exception |
* is part of the escape sequence. With one exception |
* (see below), that character won't be returned. |
* (see below), that character won't be returned. |
Line 76 mandoc_escape(const char **end, const char **start, in |
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Line 139 mandoc_escape(const char **end, const char **start, in |
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*sz = 2; |
*sz = 2; |
break; |
break; |
case '[': |
case '[': |
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if (**start == ' ') { |
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++*end; |
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return ESCAPE_ERROR; |
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} |
gly = ESCAPE_SPECIAL; |
gly = ESCAPE_SPECIAL; |
term = ']'; |
term = ']'; |
break; |
break; |
Line 90 mandoc_escape(const char **end, const char **start, in |
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Line 157 mandoc_escape(const char **end, const char **start, in |
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/* |
/* |
* Escapes taking no arguments at all. |
* Escapes taking no arguments at all. |
*/ |
*/ |
case 'd': |
case '!': |
case 'u': |
case '?': |
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return ESCAPE_UNSUPP; |
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case '%': |
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case '&': |
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case ')': |
case ',': |
case ',': |
case '/': |
case '/': |
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case '^': |
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case 'a': |
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case 'd': |
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case 'r': |
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case 't': |
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case 'u': |
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case '{': |
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case '|': |
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case '}': |
return ESCAPE_IGNORE; |
return ESCAPE_IGNORE; |
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case 'c': |
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return ESCAPE_NOSPACE; |
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case 'p': |
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return ESCAPE_BREAK; |
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/* |
/* |
* The \z escape is supposed to output the following |
* The \z escape is supposed to output the following |
Line 110 mandoc_escape(const char **end, const char **start, in |
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Line 194 mandoc_escape(const char **end, const char **start, in |
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* 'X' is the trigger. These have opaque sub-strings. |
* 'X' is the trigger. These have opaque sub-strings. |
*/ |
*/ |
case 'F': |
case 'F': |
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case 'f': |
case 'g': |
case 'g': |
case 'k': |
case 'k': |
case 'M': |
case 'M': |
case 'm': |
case 'm': |
case 'n': |
case 'n': |
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case 'O': |
case 'V': |
case 'V': |
case 'Y': |
case 'Y': |
gly = ESCAPE_IGNORE; |
gly = (*start)[-1] == 'f' ? ESCAPE_FONT : ESCAPE_IGNORE; |
/* FALLTHROUGH */ |
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case 'f': |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_FONT; |
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switch (**start) { |
switch (**start) { |
case '(': |
case '(': |
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if ((*start)[-1] == 'O') |
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gly = ESCAPE_ERROR; |
*start = ++*end; |
*start = ++*end; |
*sz = 2; |
*sz = 2; |
break; |
break; |
case '[': |
case '[': |
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if ((*start)[-1] == 'O') |
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gly = (*start)[1] == '5' ? |
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ESCAPE_UNSUPP : ESCAPE_ERROR; |
*start = ++*end; |
*start = ++*end; |
term = ']'; |
term = ']'; |
break; |
break; |
default: |
default: |
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if ((*start)[-1] == 'O') { |
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switch (**start) { |
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case '0': |
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gly = ESCAPE_UNSUPP; |
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break; |
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case '1': |
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case '2': |
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case '3': |
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case '4': |
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break; |
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default: |
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gly = ESCAPE_ERROR; |
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break; |
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} |
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} |
*sz = 1; |
*sz = 1; |
break; |
break; |
} |
} |
break; |
break; |
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case '*': |
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if (strncmp(*start, "(.T", 3) != 0) |
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abort(); |
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gly = ESCAPE_DEVICE; |
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*start = ++*end; |
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*sz = 2; |
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break; |
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/* |
/* |
* These escapes are of the form \X'Y', where 'X' is the trigger |
* These escapes are of the form \X'Y', where 'X' is the trigger |
Line 247 mandoc_escape(const char **end, const char **start, in |
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Line 356 mandoc_escape(const char **end, const char **start, in |
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break; |
break; |
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/* |
/* |
* Anything else is assumed to be a glyph. |
* Several special characters can be encoded as |
* In this case, pass back the character after the backslash. |
* one-byte escape sequences without using \[]. |
*/ |
*/ |
default: |
case ' ': |
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case '\'': |
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case '-': |
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case '.': |
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case '0': |
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case ':': |
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case '_': |
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case '`': |
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case 'e': |
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case '~': |
gly = ESCAPE_SPECIAL; |
gly = ESCAPE_SPECIAL; |
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/* FALLTHROUGH */ |
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default: |
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if (gly == ESCAPE_ERROR) |
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gly = ESCAPE_UNDEF; |
*start = --*end; |
*start = --*end; |
*sz = 1; |
*sz = 1; |
break; |
break; |
} |
} |
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assert(ESCAPE_ERROR != gly); |
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/* |
/* |
* Read up to the terminating character, |
* Read up to the terminating character, |
* paying attention to nested escapes. |
* paying attention to nested escapes. |
Line 281 mandoc_escape(const char **end, const char **start, in |
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Line 401 mandoc_escape(const char **end, const char **start, in |
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} |
} |
} |
} |
*sz = (*end)++ - *start; |
*sz = (*end)++ - *start; |
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/* |
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* The file chars.c only provides one common list |
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* of character names, but \[-] == \- is the only |
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* one of the characters with one-byte names that |
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* allows enclosing the name in brackets. |
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*/ |
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if (gly == ESCAPE_SPECIAL && *sz == 1 && **start != '-') |
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return ESCAPE_ERROR; |
} else { |
} else { |
assert(*sz > 0); |
assert(*sz > 0); |
if ((size_t)*sz > strlen(*start)) |
if ((size_t)*sz > strlen(*start)) |
Line 292 mandoc_escape(const char **end, const char **start, in |
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Line 421 mandoc_escape(const char **end, const char **start, in |
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switch (gly) { |
switch (gly) { |
case ESCAPE_FONT: |
case ESCAPE_FONT: |
if (2 == *sz) { |
gly = mandoc_font(*start, *sz); |
if ('C' == **start) { |
break; |
/* |
case ESCAPE_SPECIAL: |
* Treat constant-width font modes |
if (**start == 'c') { |
* just like regular font modes. |
if (*sz < 6 || *sz > 7 || |
*/ |
strncmp(*start, "char", 4) != 0 || |
(*start)++; |
(int)strspn(*start + 4, "0123456789") + 4 < *sz) |
(*sz)--; |
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} else { |
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if ('B' == (*start)[0] && 'I' == (*start)[1]) |
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gly = ESCAPE_FONTBI; |
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break; |
break; |
} |
c = 0; |
} else if (1 != *sz) |
for (i = 4; i < *sz; i++) |
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c = 10 * c + ((*start)[i] - '0'); |
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if (c < 0x21 || (c > 0x7e && c < 0xa0) || c > 0xff) |
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break; |
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*start += 4; |
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*sz -= 4; |
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gly = ESCAPE_NUMBERED; |
break; |
break; |
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switch (**start) { |
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case '3': |
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case 'B': |
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gly = ESCAPE_FONTBOLD; |
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break; |
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case '2': |
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case 'I': |
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gly = ESCAPE_FONTITALIC; |
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break; |
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case 'P': |
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gly = ESCAPE_FONTPREV; |
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break; |
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case '1': |
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case 'R': |
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gly = ESCAPE_FONTROMAN; |
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break; |
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} |
} |
break; |
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case ESCAPE_SPECIAL: |
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if (1 == *sz && 'c' == **start) |
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gly = ESCAPE_NOSPACE; |
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/* |
/* |
* Unicode escapes are defined in groff as \[u0000] |
* Unicode escapes are defined in groff as \[u0000] |
* to \[u10FFFF], where the contained value must be |
* to \[u10FFFF], where the contained value must be |
Line 355 mandoc_escape(const char **end, const char **start, in |
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Line 466 mandoc_escape(const char **end, const char **start, in |
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return gly; |
return gly; |
} |
} |
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/* |
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* Parse a quoted or unquoted roff-style request or macro argument. |
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* Return a pointer to the parsed argument, which is either the original |
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* pointer or advanced by one byte in case the argument is quoted. |
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* NUL-terminate the argument in place. |
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* Collapse pairs of quotes inside quoted arguments. |
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* Advance the argument pointer to the next argument, |
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* or to the NUL byte terminating the argument line. |
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*/ |
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char * |
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mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos) |
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{ |
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char *start, *cp; |
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int quoted, pairs, white; |
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/* Quoting can only start with a new word. */ |
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start = *cpp; |
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quoted = 0; |
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if ('"' == *start) { |
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quoted = 1; |
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start++; |
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} |
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pairs = 0; |
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white = 0; |
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for (cp = start; '\0' != *cp; cp++) { |
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/* |
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* Move the following text left |
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* after quoted quotes and after "\\" and "\t". |
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*/ |
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if (pairs) |
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cp[-pairs] = cp[0]; |
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if ('\\' == cp[0]) { |
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/* |
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* In copy mode, translate double to single |
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* backslashes and backslash-t to literal tabs. |
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*/ |
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switch (cp[1]) { |
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case 't': |
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cp[0] = '\t'; |
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/* FALLTHROUGH */ |
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case '\\': |
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pairs++; |
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cp++; |
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break; |
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case ' ': |
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/* Skip escaped blanks. */ |
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if (0 == quoted) |
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cp++; |
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break; |
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default: |
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break; |
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} |
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} else if (0 == quoted) { |
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if (' ' == cp[0]) { |
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/* Unescaped blanks end unquoted args. */ |
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white = 1; |
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break; |
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} |
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} else if ('"' == cp[0]) { |
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if ('"' == cp[1]) { |
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/* Quoted quotes collapse. */ |
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pairs++; |
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cp++; |
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} else { |
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/* Unquoted quotes end quoted args. */ |
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quoted = 2; |
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break; |
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} |
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} |
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} |
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/* Quoted argument without a closing quote. */ |
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if (1 == quoted) |
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mandoc_msg(MANDOCERR_ARG_QUOTE, parse, ln, *pos, NULL); |
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/* NUL-terminate this argument and move to the next one. */ |
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if (pairs) |
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cp[-pairs] = '\0'; |
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if ('\0' != *cp) { |
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*cp++ = '\0'; |
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while (' ' == *cp) |
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cp++; |
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} |
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*pos += (int)(cp - start) + (quoted ? 1 : 0); |
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*cpp = cp; |
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if ('\0' == *cp && (white || ' ' == cp[-1])) |
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mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL); |
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return start; |
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} |
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static int |
static int |
a2time(time_t *t, const char *fmt, const char *p) |
a2time(time_t *t, const char *fmt, const char *p) |
{ |
{ |
Line 478 time2a(time_t t) |
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Line 494 time2a(time_t t) |
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size_t ssz; |
size_t ssz; |
int isz; |
int isz; |
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buf = NULL; |
tm = localtime(&t); |
tm = localtime(&t); |
if (tm == NULL) |
if (tm == NULL) |
return NULL; |
goto fail; |
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/* |
/* |
* Reserve space: |
* Reserve space: |
Line 504 time2a(time_t t) |
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Line 521 time2a(time_t t) |
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* of looking at LC_TIME. |
* of looking at LC_TIME. |
*/ |
*/ |
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if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1) |
isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday); |
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if (isz < 0 || isz > 4) |
goto fail; |
goto fail; |
p += isz; |
p += isz; |
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Line 514 time2a(time_t t) |
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Line 532 time2a(time_t t) |
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fail: |
fail: |
free(buf); |
free(buf); |
return NULL; |
return mandoc_strdup(""); |
} |
} |
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char * |
char * |
mandoc_normdate(struct mparse *parse, char *in, int ln, int pos) |
mandoc_normdate(struct roff_node *nch, struct roff_node *nbl) |
{ |
{ |
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char *cp; |
time_t t; |
time_t t; |
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/* No date specified: use today's date. */ |
/* No date specified. */ |
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if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) { |
if (nch == NULL) { |
mandoc_msg(MANDOCERR_DATE_MISSING, parse, ln, pos, NULL); |
if (nbl == NULL) |
return time2a(time(NULL)); |
mandoc_msg(MANDOCERR_DATE_MISSING, 0, 0, NULL); |
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else |
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mandoc_msg(MANDOCERR_DATE_MISSING, nbl->line, |
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nbl->pos, "%s", roff_name[nbl->tok]); |
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return mandoc_strdup(""); |
} |
} |
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if (*nch->string == '\0') { |
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mandoc_msg(MANDOCERR_DATE_MISSING, nch->line, |
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nch->pos, "%s", roff_name[nbl->tok]); |
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return mandoc_strdup(""); |
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} |
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if (strcmp(nch->string, "$" "Mdocdate$") == 0) |
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return time2a(time(NULL)); |
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/* Valid mdoc(7) date format. */ |
/* Valid mdoc(7) date format. */ |
|
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if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) || |
if (a2time(&t, "$" "Mdocdate: %b %d %Y $", nch->string) || |
a2time(&t, "%b %d, %Y", in)) |
a2time(&t, "%b %d, %Y", nch->string)) { |
return time2a(t); |
cp = time2a(t); |
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if (t > time(NULL) + 86400) |
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mandoc_msg(MANDOCERR_DATE_FUTURE, nch->line, |
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nch->pos, "%s %s", roff_name[nbl->tok], cp); |
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else if (*nch->string != '$' && |
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strcmp(nch->string, cp) != 0) |
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mandoc_msg(MANDOCERR_DATE_NORM, nch->line, |
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nch->pos, "%s %s", roff_name[nbl->tok], cp); |
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return cp; |
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} |
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/* Do not warn about the legacy man(7) format. */ |
/* In man(7), do not warn about the legacy format. */ |
|
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if ( ! a2time(&t, "%Y-%m-%d", in)) |
if (a2time(&t, "%Y-%m-%d", nch->string) == 0) |
mandoc_msg(MANDOCERR_DATE_BAD, parse, ln, pos, in); |
mandoc_msg(MANDOCERR_DATE_BAD, nch->line, nch->pos, |
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"%s %s", roff_name[nbl->tok], nch->string); |
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else if (t > time(NULL) + 86400) |
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mandoc_msg(MANDOCERR_DATE_FUTURE, nch->line, nch->pos, |
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"%s %s", roff_name[nbl->tok], nch->string); |
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else if (nbl->tok == MDOC_Dd) |
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mandoc_msg(MANDOCERR_DATE_LEGACY, nch->line, nch->pos, |
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"Dd %s", nch->string); |
|
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/* Use any non-mdoc(7) date verbatim. */ |
/* Use any non-mdoc(7) date verbatim. */ |
|
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return mandoc_strdup(in); |
return mandoc_strdup(nch->string); |
} |
} |
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int |
int |