version 1.1, 2009/03/16 22:19:19 |
version 1.8, 2009/06/10 20:18:43 |
|
|
/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@openbsd.org> |
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se> |
* |
* |
* 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 |
* purpose with or without fee is hereby granted, provided that the above |
* above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
* copies. |
|
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
*/ |
#include <assert.h> |
#include <assert.h> |
#include <err.h> |
#include <err.h> |
|
|
#define ASCII_PRINT_HI 126 |
#define ASCII_PRINT_HI 126 |
#define ASCII_PRINT_LO 32 |
#define ASCII_PRINT_LO 32 |
|
|
/* |
|
* Lookup and hashing routines for constructing the ASCII symbol table, |
|
* which should contain a significant portion of mdoc(7)'s special |
|
* symbols. |
|
*/ |
|
|
|
struct line { |
struct line { |
const char *code; |
const char *code; |
const char *out; |
const char *out; |
/* 32- and 64-bit alignment safe. */ |
/* 32- and 64-bit alignment safe. */ |
size_t codesz; |
size_t codesz; |
size_t outsz; |
size_t outsz; |
}; |
}; |
|
|
struct linep { |
struct linep { |
const struct line *line; |
const struct line *line; |
struct linep *next; |
struct linep *next; |
}; |
}; |
|
|
#define LINE(w, x, y, z) \ |
#define LINE(w, x, y, z) \ |
Line 51 static const struct line lines[] = { |
|
Line 43 static const struct line lines[] = { |
|
#include "ascii.in" |
#include "ascii.in" |
}; |
}; |
|
|
|
struct asciitab { |
|
struct linep *lines; |
|
void **htab; |
|
}; |
|
|
static inline int match(const struct line *, |
|
|
static inline int match(const struct line *, |
const char *, size_t); |
const char *, size_t); |
|
|
|
|
|
void |
|
term_asciifree(void *arg) |
|
{ |
|
struct asciitab *tab; |
|
|
|
tab = (struct asciitab *)arg; |
|
|
|
free(tab->lines); |
|
free(tab->htab); |
|
free(tab); |
|
} |
|
|
|
|
void * |
void * |
ascii2htab(void) |
term_ascii2htab(void) |
{ |
{ |
|
struct asciitab *tab; |
void **htab; |
void **htab; |
struct linep *pp, *p; |
struct linep *pp, *p; |
int i, len, hash; |
int i, len, hash; |
|
|
* (they're in-line re-ordered during lookup). |
* (they're in-line re-ordered during lookup). |
*/ |
*/ |
|
|
assert(0 == sizeof(lines) % sizeof(struct line)); |
if (NULL == (tab = malloc(sizeof(struct asciitab)))) |
|
err(1, "malloc"); |
|
|
len = sizeof(lines) / sizeof(struct line); |
len = sizeof(lines) / sizeof(struct line); |
|
|
if (NULL == (p = calloc((size_t)len, sizeof(struct linep)))) |
if (NULL == (p = calloc((size_t)len, sizeof(struct linep)))) |
Line 102 ascii2htab(void) |
|
Line 115 ascii2htab(void) |
|
pp->next = &p[i]; |
pp->next = &p[i]; |
} |
} |
|
|
return((void *)htab); |
tab->htab = htab; |
|
tab->lines = p; |
|
|
|
return(tab); |
} |
} |
|
|
|
|
const char * |
const char * |
a2ascii(void *htabp, const char *p, size_t sz, size_t *rsz) |
term_a2ascii(void *arg, const char *p, size_t sz, size_t *rsz) |
{ |
{ |
|
struct asciitab *tab; |
struct linep *pp, *prev; |
struct linep *pp, *prev; |
void **htab; |
void **htab; |
int hash; |
int hash; |
|
|
htab = (void **)htabp; |
tab = (struct asciitab *)arg; |
|
htab = tab->htab; |
|
|
assert(p); |
assert(p); |
assert(sz > 0); |
assert(sz > 0); |
assert(p[0] >= ASCII_PRINT_LO && p[0] <= ASCII_PRINT_HI); |
|
|
if (p[0] < ASCII_PRINT_LO || p[0] > ASCII_PRINT_HI) |
|
return(NULL); |
|
|
|
|
/* |
/* |
* Lookup the symbol in the symbol hash. See ascii2htab for the |
* Lookup the symbol in the symbol hash. See ascii2htab for the |