version 1.4, 2009/02/21 15:34:46 |
version 1.140, 2010/05/25 12:37:20 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 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. |
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*/ |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <curses.h> |
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#include <err.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <term.h> |
#include <time.h> |
#include <unistd.h> |
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#include "private.h" |
#include "mandoc.h" |
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#include "chars.h" |
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#include "out.h" |
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#include "term.h" |
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#include "man.h" |
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#include "mdoc.h" |
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#include "main.h" |
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enum termesc { |
static struct termp *term_alloc(enum termenc, size_t); |
ESC_CLEAR, |
static void term_free(struct termp *); |
ESC_BOLD, |
static void spec(struct termp *, const char *, size_t); |
ESC_UNDERLINE |
static void res(struct termp *, const char *, size_t); |
}; |
static void buffera(struct termp *, const char *, size_t); |
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static void bufferc(struct termp *, char); |
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static void adjbuf(struct termp *p, size_t); |
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static void encode(struct termp *, const char *, size_t); |
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struct termp { |
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size_t rmargin; |
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size_t maxrmargin; |
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size_t maxcols; |
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size_t offset; |
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size_t col; |
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int flags; |
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#define TERMP_BOLD (1 << 0) /* Embolden words. */ |
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#define TERMP_UNDERLINE (1 << 1) /* Underline words. */ |
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#define TERMP_NOSPACE (1 << 2) /* No space before words. */ |
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#define TERMP_NOLPAD (1 << 3) /* No left-padding. */ |
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#define TERMP_NOBREAK (1 << 4) /* No break after line */ |
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char *buf; |
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}; |
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struct termact { |
void * |
int (*pre)(struct termp *, |
ascii_alloc(size_t width) |
const struct mdoc_meta *, |
{ |
const struct mdoc_node *); |
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int (*post)(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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}; |
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static void termprint_r(struct termp *, |
return(term_alloc(TERMENC_ASCII, width)); |
const struct mdoc_meta *, |
} |
const struct mdoc_node *); |
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static void termprint_header(struct termp *, |
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const struct mdoc_meta *); |
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static void termprint_footer(struct termp *, |
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const struct mdoc_meta *); |
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static int arg_hasattr(int, size_t, |
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const struct mdoc_arg *); |
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static int arg_getattr(int, size_t, |
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const struct mdoc_arg *); |
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static void newln(struct termp *); |
void |
static void vspace(struct termp *); |
terminal_free(void *arg) |
static void pword(struct termp *, const char *, size_t); |
{ |
static void word(struct termp *, const char *); |
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#define decl_prepost(name, suffix) \ |
term_free((struct termp *)arg); |
static int name##_##suffix(struct termp *, \ |
} |
const struct mdoc_meta *, \ |
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const struct mdoc_node *) |
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#define decl_pre(name) decl_prepost(name, pre) |
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#define decl_post(name) decl_prepost(name, post) |
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decl_pre(termp_fl); |
static void |
decl_pre(termp_it); |
term_free(struct termp *p) |
decl_pre(termp_nd); |
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decl_pre(termp_ns); |
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decl_pre(termp_op); |
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decl_pre(termp_pp); |
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decl_pre(termp_sh); |
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decl_pre(termp_xr); |
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decl_post(termp_bl); |
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decl_post(termp_it); |
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decl_post(termp_op); |
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decl_post(termp_sh); |
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decl_pre(termp_bold); |
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decl_pre(termp_under); |
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decl_post(termp_bold); |
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decl_post(termp_under); |
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const struct termact termacts[MDOC_MAX] = { |
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{ NULL, NULL }, /* \" */ |
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{ NULL, NULL }, /* Dd */ |
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{ NULL, NULL }, /* Dt */ |
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{ NULL, NULL }, /* Os */ |
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{ termp_sh_pre, termp_sh_post }, /* Sh */ |
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{ NULL, NULL }, /* Ss */ |
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{ termp_pp_pre, NULL }, /* Pp */ |
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{ NULL, NULL }, /* D1 */ |
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{ NULL, NULL }, /* Dl */ |
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{ NULL, NULL }, /* Bd */ |
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{ NULL, NULL }, /* Ed */ |
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{ NULL, termp_bl_post }, /* Bl */ |
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{ NULL, NULL }, /* El */ |
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{ termp_it_pre, termp_it_post }, /* It */ |
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{ NULL, NULL }, /* Ad */ |
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{ NULL, NULL }, /* An */ |
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{ termp_under_pre, termp_under_post }, /* Ar */ |
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{ NULL, NULL }, /* Cd */ |
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{ NULL, NULL }, /* Cm */ |
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{ NULL, NULL }, /* Dv */ |
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{ NULL, NULL }, /* Er */ |
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{ NULL, NULL }, /* Ev */ |
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{ NULL, NULL }, /* Ex */ |
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{ NULL, NULL }, /* Fa */ |
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{ NULL, NULL }, /* Fd */ |
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{ termp_fl_pre, termp_bold_post }, /* Fl */ |
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{ NULL, NULL }, /* Fn */ |
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{ NULL, NULL }, /* Ft */ |
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{ NULL, NULL }, /* Ic */ |
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{ NULL, NULL }, /* In */ |
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{ NULL, NULL }, /* Li */ |
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{ termp_nd_pre, NULL }, /* Nd */ |
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{ termp_bold_pre, termp_bold_post }, /* Nm */ |
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{ termp_op_pre, termp_op_post }, /* Op */ |
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{ NULL, NULL }, /* Ot */ |
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{ NULL, NULL }, /* Pa */ |
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{ NULL, NULL }, /* Rv */ |
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{ NULL, NULL }, /* St */ |
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{ NULL, NULL }, /* Va */ |
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{ NULL, NULL }, /* Vt */ |
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{ termp_xr_pre, NULL }, /* Xr */ |
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{ NULL, NULL }, /* %A */ |
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{ NULL, NULL }, /* %B */ |
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{ NULL, NULL }, /* %D */ |
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{ NULL, NULL }, /* %I */ |
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{ NULL, NULL }, /* %J */ |
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{ NULL, NULL }, /* %N */ |
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{ NULL, NULL }, /* %O */ |
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{ NULL, NULL }, /* %P */ |
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{ NULL, NULL }, /* %R */ |
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{ NULL, NULL }, /* %T */ |
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{ NULL, NULL }, /* %V */ |
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{ NULL, NULL }, /* Ac */ |
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{ NULL, NULL }, /* Ao */ |
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{ NULL, NULL }, /* Aq */ |
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{ NULL, NULL }, /* At */ |
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{ NULL, NULL }, /* Bc */ |
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{ NULL, NULL }, /* Bf */ |
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{ NULL, NULL }, /* Bo */ |
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{ NULL, NULL }, /* Bq */ |
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{ NULL, NULL }, /* Bsx */ |
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{ NULL, NULL }, /* Bx */ |
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{ NULL, NULL }, /* Db */ |
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{ NULL, NULL }, /* Dc */ |
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{ NULL, NULL }, /* Do */ |
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{ NULL, NULL }, /* Dq */ |
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{ NULL, NULL }, /* Ec */ |
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{ NULL, NULL }, /* Ef */ |
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{ NULL, NULL }, /* Em */ |
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{ NULL, NULL }, /* Eo */ |
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{ NULL, NULL }, /* Fx */ |
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{ NULL, NULL }, /* Ms */ |
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{ NULL, NULL }, /* No */ |
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{ termp_ns_pre, NULL }, /* Ns */ |
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{ NULL, NULL }, /* Nx */ |
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{ NULL, NULL }, /* Ox */ |
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{ NULL, NULL }, /* Pc */ |
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{ NULL, NULL }, /* Pf */ |
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{ NULL, NULL }, /* Po */ |
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{ NULL, NULL }, /* Pq */ |
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{ NULL, NULL }, /* Qc */ |
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{ NULL, NULL }, /* Ql */ |
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{ NULL, NULL }, /* Qo */ |
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{ NULL, NULL }, /* Qq */ |
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{ NULL, NULL }, /* Re */ |
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{ NULL, NULL }, /* Rs */ |
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{ NULL, NULL }, /* Sc */ |
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{ NULL, NULL }, /* So */ |
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{ NULL, NULL }, /* Sq */ |
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{ NULL, NULL }, /* Sm */ |
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{ NULL, NULL }, /* Sx */ |
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{ NULL, NULL }, /* Sy */ |
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{ NULL, NULL }, /* Tn */ |
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{ NULL, NULL }, /* Ux */ |
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{ NULL, NULL }, /* Xc */ |
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{ NULL, NULL }, /* Xo */ |
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{ NULL, NULL }, /* Fo */ |
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{ NULL, NULL }, /* Fc */ |
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{ NULL, NULL }, /* Oo */ |
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{ NULL, NULL }, /* Oc */ |
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{ NULL, NULL }, /* Bk */ |
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{ NULL, NULL }, /* Ek */ |
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{ NULL, NULL }, /* Bt */ |
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{ NULL, NULL }, /* Hf */ |
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{ NULL, NULL }, /* Fr */ |
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{ NULL, NULL }, /* Ud */ |
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}; |
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static int |
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arg_hasattr(int arg, size_t argc, const struct mdoc_arg *argv) |
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{ |
{ |
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return(-1 != arg_getattr(arg, argc, argv)); |
if (p->buf) |
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free(p->buf); |
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if (p->symtab) |
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chars_free(p->symtab); |
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free(p); |
} |
} |
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static int |
static struct termp * |
arg_getattr(int arg, size_t argc, const struct mdoc_arg *argv) |
term_alloc(enum termenc enc, size_t width) |
{ |
{ |
int i; |
struct termp *p; |
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for (i = 0; i < (int)argc; i++) |
p = calloc(1, sizeof(struct termp)); |
if (argv[i].arg == arg) |
if (NULL == p) { |
return(i); |
perror(NULL); |
return(-1); |
exit(EXIT_FAILURE); |
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} |
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p->tabwidth = 5; |
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p->enc = enc; |
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/* Enforce some lower boundary. */ |
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if (width < 60) |
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width = 60; |
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p->defrmargin = width - 2; |
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return(p); |
} |
} |
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static void |
/* |
flushln(struct termp *p) |
* Flush a line of text. A "line" is loosely defined as being something |
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* that should be followed by a newline, regardless of whether it's |
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* broken apart by newlines getting there. A line can also be a |
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* fragment of a columnar list (`Bl -tag' or `Bl -column'), which does |
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* not have a trailing newline. |
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* |
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* The following flags may be specified: |
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* |
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* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
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* offset value. This is useful when doing columnar lists where the |
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* prior column has right-padded. |
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* |
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* - TERMP_NOBREAK: this is the most important and is used when making |
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* columns. In short: don't print a newline and instead pad to the |
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* right margin. Used in conjunction with TERMP_NOLPAD. |
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* |
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* - TERMP_TWOSPACE: when padding, make sure there are at least two |
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* space characters of padding. Otherwise, rather break the line. |
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* |
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* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and |
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* the line is overrun, and don't pad-right if it's underrun. |
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* |
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* - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when |
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* overruning, instead save the position and continue at that point |
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* when the next invocation. |
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* |
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* In-line line breaking: |
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* |
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* If TERMP_NOBREAK is specified and the line overruns the right |
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* margin, it will break and pad-right to the right margin after |
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* writing. If maxrmargin is violated, it will break and continue |
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* writing from the right-margin, which will lead to the above scenario |
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* upon exit. Otherwise, the line will break at the right margin. |
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*/ |
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void |
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term_flushln(struct termp *p) |
{ |
{ |
size_t i, j, vsz, vis, maxvis; |
int i; /* current input position in p->buf */ |
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size_t vis; /* current visual position on output */ |
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size_t vbl; /* number of blanks to prepend to output */ |
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size_t vend; /* end of word visual position on output */ |
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size_t bp; /* visual right border position */ |
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int j; /* temporary loop index */ |
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int jhy; /* last hyphen before line overflow */ |
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size_t maxvis, mmax; |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
* This is usually the difference between the right-margin and |
* This is usually the difference between the right-margin and |
* an indentation, but can be, for tagged lists or columns, a |
* an indentation, but can be, for tagged lists or columns, a |
* small set of values. |
* small set of values. |
*/ |
*/ |
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assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
maxvis = p->rmargin - p->offset; |
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vis = 0; |
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maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ? |
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/* LINTED */ |
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0 : p->rmargin - p->offset - p->overstep; |
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mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ? |
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/* LINTED */ |
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0 : p->maxrmargin - p->offset - p->overstep; |
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bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
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/* |
/* |
* If in the standard case (left-justified), then begin with our |
* Indent the first line of a paragraph. |
* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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*/ |
*/ |
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vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
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if ( ! (p->flags & TERMP_NOLPAD)) |
/* |
/* LINTED */ |
* FIXME: if bp is zero, we still output the first word before |
for (j = 0; j < p->offset; j++) |
* breaking the line. |
putchar(' '); |
*/ |
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for (i = 0; i < p->col; i++) { |
vis = vend = i = 0; |
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while (i < (int)p->col) { |
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/* |
/* |
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* Handle literal tab characters. |
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*/ |
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for (j = i; j < (int)p->col; j++) { |
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if ('\t' != p->buf[j]) |
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break; |
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vend = (vis/p->tabwidth+1)*p->tabwidth; |
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vbl += vend - vis; |
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vis = vend; |
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} |
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/* |
* Count up visible word characters. Control sequences |
* Count up visible word characters. Control sequences |
* (starting with the CSI) aren't counted. |
* (starting with the CSI) aren't counted. A space |
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* generates a non-printing word, which is valid (the |
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* space is printed according to regular spacing rules). |
*/ |
*/ |
assert( ! isspace(p->buf[i])); |
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/* LINTED */ |
/* LINTED */ |
for (j = i, vsz = 0; j < p->col; j++) { |
for (jhy = 0; j < (int)p->col; j++) { |
if (isspace(p->buf[j])) |
if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
break; |
break; |
else if (27 == p->buf[j]) { |
if (8 != p->buf[j]) { |
assert(j + 4 <= p->col); |
if (vend > vis && vend < bp && |
j += 3; |
ASCII_HYPH == p->buf[j]) |
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jhy = j; |
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vend++; |
} else |
} else |
vsz++; |
vend--; |
} |
} |
assert(vsz > 0); |
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/* |
/* |
* If a word is too long and we're within a line, put it |
* Find out whether we would exceed the right margin. |
* on the next line. Puke if we're being asked to write |
* If so, break to the next line. |
* something that will exceed the right margin (i.e., |
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* from a fresh line or when we're not allowed to break |
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* the line with TERMP_NOBREAK). |
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*/ |
*/ |
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if (vend > bp && 0 == jhy && vis > 0) { |
if (vis && vis + vsz >= maxvis) { |
vend -= vis; |
/* FIXME */ |
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if (p->flags & TERMP_NOBREAK) |
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errx(1, "word breaks right margin"); |
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putchar('\n'); |
putchar('\n'); |
for (j = 0; j < p->offset; j++) |
if (TERMP_NOBREAK & p->flags) { |
putchar(' '); |
p->viscol = p->rmargin; |
vis = 0; |
for (j = 0; j < (int)p->rmargin; j++) |
} else if (vis + vsz >= maxvis) { |
putchar(' '); |
/* FIXME */ |
vend += p->rmargin - p->offset; |
errx(1, "word breaks right margin"); |
} else { |
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p->viscol = 0; |
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vbl = p->offset; |
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} |
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/* Remove the p->overstep width. */ |
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bp += (int)/* LINTED */ |
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p->overstep; |
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p->overstep = 0; |
} |
} |
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/* |
/* |
* Write out the word and a trailing space. Omit the |
* Skip leading tabs, they were handled above. |
* space if we're the last word in the line. |
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*/ |
*/ |
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while (i < (int)p->col && '\t' == p->buf[i]) |
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i++; |
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for ( ; i < p->col; i++) { |
/* Write out the [remaining] word. */ |
if (isspace(p->buf[i])) |
for ( ; i < (int)p->col; i++) { |
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if (vend > bp && jhy > 0 && i > jhy) |
break; |
break; |
putchar(p->buf[i]); |
if ('\t' == p->buf[i]) |
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break; |
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if (' ' == p->buf[i]) { |
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while (' ' == p->buf[i]) { |
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vbl++; |
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i++; |
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} |
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break; |
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} |
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if (ASCII_NBRSP == p->buf[i]) { |
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vbl++; |
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continue; |
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} |
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/* |
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* Now we definitely know there will be |
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* printable characters to output, |
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* so write preceding white space now. |
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*/ |
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if (vbl) { |
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for (j = 0; j < (int)vbl; j++) |
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putchar(' '); |
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p->viscol += vbl; |
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vbl = 0; |
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} |
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if (ASCII_HYPH == p->buf[i]) |
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putchar('-'); |
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else |
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putchar(p->buf[i]); |
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p->viscol += 1; |
} |
} |
vis += vsz; |
vend += vbl; |
if (i < p->col) { |
vis = vend; |
putchar(' '); |
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vis++; |
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} |
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} |
} |
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/* |
p->col = 0; |
* If we're not to right-marginalise it (newline), then instead |
p->overstep = 0; |
* pad to the right margin and stay off. |
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*/ |
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if (p->flags & TERMP_NOBREAK) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
for ( ; vis <= maxvis; vis++) |
p->viscol = 0; |
putchar(' '); |
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} else |
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putchar('\n'); |
putchar('\n'); |
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return; |
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} |
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p->col = 0; |
if (TERMP_HANG & p->flags) { |
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/* We need one blank after the tag. */ |
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p->overstep = /* LINTED */ |
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vis - maxvis + 1; |
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/* |
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* Behave exactly the same way as groff: |
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* If we have overstepped the margin, temporarily move |
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* it to the right and flag the rest of the line to be |
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* shorter. |
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* If we landed right at the margin, be happy. |
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* If we are one step before the margin, temporarily |
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* move it one step LEFT and flag the rest of the line |
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* to be longer. |
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*/ |
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if (p->overstep >= -1) { |
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assert((int)maxvis + p->overstep >= 0); |
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/* LINTED */ |
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maxvis += p->overstep; |
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} else |
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p->overstep = 0; |
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} else if (TERMP_DANGLE & p->flags) |
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return; |
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/* Right-pad. */ |
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if (maxvis > vis + /* LINTED */ |
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((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { |
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p->viscol += maxvis - vis; |
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for ( ; vis < maxvis; vis++) |
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putchar(' '); |
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} else { /* ...or newline break. */ |
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putchar('\n'); |
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p->viscol = p->rmargin; |
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for (i = 0; i < (int)p->rmargin; i++) |
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putchar(' '); |
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} |
} |
} |
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static void |
/* |
newln(struct termp *p) |
* A newline only breaks an existing line; it won't assert vertical |
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* space. All data in the output buffer is flushed prior to the newline |
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* assertion. |
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*/ |
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void |
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term_newln(struct termp *p) |
{ |
{ |
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/* |
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* A newline only breaks an existing line; it won't assert |
|
* vertical space. |
|
*/ |
|
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
if (0 == p->col) |
if (0 == p->col && 0 == p->viscol) { |
|
p->flags &= ~TERMP_NOLPAD; |
return; |
return; |
flushln(p); |
} |
|
term_flushln(p); |
|
p->flags &= ~TERMP_NOLPAD; |
} |
} |
|
|
|
|
static void |
/* |
vspace(struct termp *p) |
* Asserts a vertical space (a full, empty line-break between lines). |
|
* Note that if used twice, this will cause two blank spaces and so on. |
|
* All data in the output buffer is flushed prior to the newline |
|
* assertion. |
|
*/ |
|
void |
|
term_vspace(struct termp *p) |
{ |
{ |
|
|
/* |
term_newln(p); |
* Asserts a vertical space (a full, empty line-break between |
p->viscol = 0; |
* lines). |
|
*/ |
|
newln(p); |
|
putchar('\n'); |
putchar('\n'); |
} |
} |
|
|
|
|
static void |
static void |
chara(struct termp *p, char c) |
spec(struct termp *p, const char *word, size_t len) |
{ |
{ |
|
const char *rhs; |
|
size_t sz; |
|
|
/* TODO: dynamically expand the buffer. */ |
rhs = chars_a2ascii(p->symtab, word, len, &sz); |
if (p->col + 1 >= p->maxcols) |
if (rhs) |
errx(1, "line overrun"); |
encode(p, rhs, sz); |
p->buf[(p->col)++] = c; |
|
} |
} |
|
|
|
|
static void |
static void |
escape(struct termp *p, enum termesc esc) |
res(struct termp *p, const char *word, size_t len) |
{ |
{ |
|
const char *rhs; |
|
size_t sz; |
|
|
if (p->col + 4 >= p->maxcols) |
rhs = chars_a2res(p->symtab, word, len, &sz); |
errx(1, "line overrun"); |
if (rhs) |
|
encode(p, rhs, sz); |
p->buf[(p->col)++] = 27; |
|
p->buf[(p->col)++] = '['; |
|
switch (esc) { |
|
case (ESC_CLEAR): |
|
p->buf[(p->col)++] = '0'; |
|
break; |
|
case (ESC_BOLD): |
|
p->buf[(p->col)++] = '1'; |
|
break; |
|
case (ESC_UNDERLINE): |
|
p->buf[(p->col)++] = '4'; |
|
break; |
|
default: |
|
abort(); |
|
/* NOTREACHED */ |
|
} |
|
p->buf[(p->col)++] = 'm'; |
|
} |
} |
|
|
|
|
static void |
void |
pword(struct termp *p, const char *word, size_t len) |
term_fontlast(struct termp *p) |
{ |
{ |
size_t i; |
enum termfont f; |
|
|
assert(len > 0); |
f = p->fontl; |
|
p->fontl = p->fontq[p->fonti]; |
|
p->fontq[p->fonti] = f; |
|
} |
|
|
if ( ! (p->flags & TERMP_NOSPACE)) |
|
chara(p, ' '); |
|
|
|
p->flags &= ~TERMP_NOSPACE; |
void |
|
term_fontrepl(struct termp *p, enum termfont f) |
|
{ |
|
|
if (p->flags & TERMP_BOLD) |
p->fontl = p->fontq[p->fonti]; |
escape(p, ESC_BOLD); |
p->fontq[p->fonti] = f; |
if (p->flags & TERMP_UNDERLINE) |
} |
escape(p, ESC_UNDERLINE); |
|
|
|
/* TODO: escape patterns. */ |
|
|
|
for (i = 0; i < len; i++) |
void |
chara(p, word[i]); |
term_fontpush(struct termp *p, enum termfont f) |
|
{ |
|
|
if (p->flags & TERMP_BOLD || |
assert(p->fonti + 1 < 10); |
p->flags & TERMP_UNDERLINE) |
p->fontl = p->fontq[p->fonti]; |
escape(p, ESC_CLEAR); |
p->fontq[++p->fonti] = f; |
} |
} |
|
|
|
|
static void |
const void * |
word(struct termp *p, const char *word) |
term_fontq(struct termp *p) |
{ |
{ |
size_t i, j, len; |
|
|
|
if (mdoc_isdelim(word)) |
return(&p->fontq[p->fonti]); |
p->flags |= TERMP_NOSPACE; |
|
|
|
len = strlen(word); |
|
assert(len > 0); |
|
|
|
/* LINTED */ |
|
for (j = i = 0; i < len; i++) { |
|
if ( ! isspace(word[i])) { |
|
j++; |
|
continue; |
|
} |
|
if (0 == j) |
|
continue; |
|
assert(i >= j); |
|
pword(p, &word[i - j], j); |
|
j = 0; |
|
} |
|
if (j > 0) { |
|
assert(i >= j); |
|
pword(p, &word[i - j], j); |
|
} |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
enum termfont |
static int |
term_fonttop(struct termp *p) |
termp_it_post(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
const struct mdoc_node *n, *it; |
|
const struct mdoc_block *bl; |
|
int i; |
|
size_t width; |
|
|
|
switch (node->type) { |
return(p->fontq[p->fonti]); |
case (MDOC_BODY): |
} |
/* FALLTHROUGH */ |
|
case (MDOC_HEAD): |
|
break; |
|
default: |
|
return(1); |
|
} |
|
|
|
it = node->parent; |
|
assert(MDOC_BLOCK == it->type); |
|
assert(MDOC_It == it->tok); |
|
|
|
n = it->parent; |
void |
assert(MDOC_BODY == n->type); |
term_fontpopq(struct termp *p, const void *key) |
assert(MDOC_Bl == n->tok); |
{ |
n = n->parent; |
|
bl = &n->data.block; |
|
|
|
/* If `-tag', adjust our margins accordingly. */ |
while (p->fonti >= 0 && key != &p->fontq[p->fonti]) |
|
p->fonti--; |
|
assert(p->fonti >= 0); |
|
} |
|
|
if (arg_hasattr(MDOC_Tag, bl->argc, bl->argv)) { |
|
i = arg_getattr(MDOC_Width, bl->argc, bl->argv); |
|
assert(i >= 0); |
|
assert(1 == bl->argv[i].sz); |
|
width = strlen(*bl->argv[i].value); /* XXX */ |
|
|
|
if (MDOC_HEAD == node->type) { |
void |
flushln(p); |
term_fontpop(struct termp *p) |
/* FIXME: nested lists. */ |
{ |
p->rmargin = p->maxrmargin; |
|
p->flags &= ~TERMP_NOBREAK; |
|
} else { |
|
flushln(p); |
|
p->offset -= width + 1; |
|
p->flags &= ~TERMP_NOLPAD; |
|
} |
|
} |
|
|
|
return(1); |
assert(p->fonti); |
|
p->fonti--; |
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* |
static int |
* Handle pwords, partial words, which may be either a single word or a |
termp_it_pre(struct termp *p, const struct mdoc_meta *meta, |
* phrase that cannot be broken down (such as a literal string). This |
const struct mdoc_node *node) |
* handles word styling. |
|
*/ |
|
void |
|
term_word(struct termp *p, const char *word) |
{ |
{ |
const struct mdoc_node *n, *it; |
const char *sv, *seq; |
const struct mdoc_block *bl; |
int sz; |
int i; |
size_t ssz; |
size_t width; |
enum roffdeco deco; |
|
|
switch (node->type) { |
sv = word; |
case (MDOC_BODY): |
|
/* FALLTHROUGH */ |
|
case (MDOC_HEAD): |
|
it = node->parent; |
|
break; |
|
case (MDOC_BLOCK): |
|
it = node; |
|
break; |
|
default: |
|
return(1); |
|
} |
|
|
|
assert(MDOC_BLOCK == it->type); |
if (word[0] && '\0' == word[1]) |
assert(MDOC_It == it->tok); |
switch (word[0]) { |
|
case('.'): |
|
/* FALLTHROUGH */ |
|
case(','): |
|
/* FALLTHROUGH */ |
|
case(';'): |
|
/* FALLTHROUGH */ |
|
case(':'): |
|
/* FALLTHROUGH */ |
|
case('?'): |
|
/* FALLTHROUGH */ |
|
case('!'): |
|
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
if ( ! (TERMP_IGNDELIM & p->flags)) |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
n = it->parent; |
if ( ! (TERMP_NOSPACE & p->flags)) { |
assert(MDOC_BODY == n->type); |
bufferc(p, ' '); |
assert(MDOC_Bl == n->tok); |
if (TERMP_SENTENCE & p->flags) |
n = n->parent; |
bufferc(p, ' '); |
bl = &n->data.block; |
} |
|
|
/* If `-compact', don't assert vertical space. */ |
if ( ! (p->flags & TERMP_NONOSPACE)) |
|
p->flags &= ~TERMP_NOSPACE; |
|
|
if (MDOC_BLOCK == node->type) { |
p->flags &= ~TERMP_SENTENCE; |
if (arg_hasattr(MDOC_Compact, bl->argc, bl->argv)) |
|
newln(p); |
|
else |
|
vspace(p); |
|
return(1); |
|
} |
|
|
|
assert(MDOC_HEAD == node->type |
/* FIXME: use strcspn. */ |
|| MDOC_BODY == node->type); |
|
|
|
/* If `-tag', adjust our margins accordingly. */ |
while (*word) { |
|
if ('\\' != *word) { |
|
encode(p, word, 1); |
|
word++; |
|
continue; |
|
} |
|
|
if (arg_hasattr(MDOC_Tag, bl->argc, bl->argv)) { |
seq = ++word; |
i = arg_getattr(MDOC_Width, bl->argc, bl->argv); |
sz = a2roffdeco(&deco, &seq, &ssz); |
assert(i >= 0); /* XXX */ |
|
assert(1 == bl->argv[i].sz); |
|
width = strlen(*bl->argv[i].value); /* XXX */ |
|
|
|
/* FIXME: nested lists. */ |
switch (deco) { |
|
case (DECO_RESERVED): |
|
res(p, seq, ssz); |
|
break; |
|
case (DECO_SPECIAL): |
|
spec(p, seq, ssz); |
|
break; |
|
case (DECO_BOLD): |
|
term_fontrepl(p, TERMFONT_BOLD); |
|
break; |
|
case (DECO_ITALIC): |
|
term_fontrepl(p, TERMFONT_UNDER); |
|
break; |
|
case (DECO_ROMAN): |
|
term_fontrepl(p, TERMFONT_NONE); |
|
break; |
|
case (DECO_PREVIOUS): |
|
term_fontlast(p); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
if (MDOC_HEAD == node->type) { |
word += sz; |
p->flags |= TERMP_NOBREAK; |
if (DECO_NOSPACE == deco && '\0' == *word) |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
p->rmargin = p->offset + width; |
|
} else { |
|
p->flags |= TERMP_NOSPACE; |
|
p->flags |= TERMP_NOLPAD; |
|
p->offset += width + 1; |
|
} |
|
} |
} |
|
|
return(1); |
/* |
|
* Note that we don't process the pipe: the parser sees it as |
|
* punctuation, but we don't in terms of typography. |
|
*/ |
|
if (sv[0] && 0 == sv[1]) |
|
switch (sv[0]) { |
|
case('('): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
|
default: |
|
break; |
|
} |
} |
} |
|
|
|
|
/* ARGSUSED */ |
static void |
static int |
adjbuf(struct termp *p, size_t sz) |
termp_bold_post(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
|
p->flags &= ~TERMP_BOLD; |
if (0 == p->maxcols) |
return(1); |
p->maxcols = 1024; |
} |
while (sz >= p->maxcols) |
|
p->maxcols <<= 2; |
|
|
|
p->buf = realloc(p->buf, p->maxcols); |
/* ARGSUSED */ |
if (NULL == p->buf) { |
static int |
perror(NULL); |
termp_under_pre(struct termp *p, const struct mdoc_meta *meta, |
exit(EXIT_FAILURE); |
const struct mdoc_node *node) |
} |
{ |
|
|
|
p->flags |= TERMP_UNDERLINE; |
|
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
static void |
static int |
buffera(struct termp *p, const char *word, size_t sz) |
termp_bold_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
|
p->flags |= TERMP_BOLD; |
if (p->col + sz >= p->maxcols) |
return(1); |
adjbuf(p, p->col + sz); |
} |
|
|
|
|
memcpy(&p->buf[(int)p->col], word, sz); |
/* ARGSUSED */ |
p->col += sz; |
static int |
|
termp_ns_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
|
|
p->flags |= TERMP_NOSPACE; |
|
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
static void |
static int |
bufferc(struct termp *p, char c) |
termp_pp_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
|
vspace(p); |
if (p->col + 1 >= p->maxcols) |
return(1); |
adjbuf(p, p->col + 1); |
} |
|
|
|
|
p->buf[(int)p->col++] = c; |
/* ARGSUSED */ |
|
static int |
|
termp_under_post(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
|
|
p->flags &= ~TERMP_UNDERLINE; |
|
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
static void |
static int |
encode(struct termp *p, const char *word, size_t sz) |
termp_nd_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
enum termfont f; |
|
int i; |
|
|
word(p, "-"); |
/* |
return(1); |
* Encode and buffer a string of characters. If the current |
} |
* font mode is unset, buffer directly, else encode then buffer |
|
* character by character. |
|
*/ |
|
|
|
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
/* ARGSUSED */ |
buffera(p, word, sz); |
static int |
return; |
termp_bl_post(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
|
|
switch (node->type) { |
|
case (MDOC_BLOCK): |
|
newln(p); |
|
break; |
|
default: |
|
break; |
|
} |
} |
return(1); |
|
} |
|
|
|
|
for (i = 0; i < (int)sz; i++) { |
|
if ( ! isgraph((u_char)word[i])) { |
|
bufferc(p, word[i]); |
|
continue; |
|
} |
|
|
/* ARGSUSED */ |
if (TERMFONT_UNDER == f) |
static int |
bufferc(p, '_'); |
termp_op_post(struct termp *p, const struct mdoc_meta *meta, |
else |
const struct mdoc_node *node) |
bufferc(p, word[i]); |
{ |
|
|
|
switch (node->type) { |
bufferc(p, 8); |
case (MDOC_BODY): |
bufferc(p, word[i]); |
p->flags |= TERMP_NOSPACE; |
|
word(p, "\\]"); |
|
break; |
|
default: |
|
break; |
|
} |
} |
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
size_t |
static int |
term_vspan(const struct roffsu *su) |
termp_sh_post(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
double r; |
|
|
switch (node->type) { |
switch (su->unit) { |
case (MDOC_HEAD): |
case (SCALE_CM): |
p->flags &= ~TERMP_BOLD; |
r = su->scale * 2; |
newln(p); |
|
break; |
break; |
case (MDOC_BODY): |
case (SCALE_IN): |
newln(p); |
r = su->scale * 6; |
p->offset -= 4; |
|
break; |
break; |
|
case (SCALE_PC): |
|
r = su->scale; |
|
break; |
|
case (SCALE_PT): |
|
r = su->scale / 8; |
|
break; |
|
case (SCALE_MM): |
|
r = su->scale / 1000; |
|
break; |
|
case (SCALE_VS): |
|
r = su->scale; |
|
break; |
default: |
default: |
|
r = su->scale - 1; |
break; |
break; |
} |
} |
return(1); |
|
} |
|
|
|
|
if (r < 0.0) |
/* ARGSUSED */ |
r = 0.0; |
static int |
return(/* LINTED */(size_t) |
termp_xr_pre(struct termp *p, const struct mdoc_meta *meta, |
r); |
const struct mdoc_node *node) |
|
{ |
|
const struct mdoc_node *n; |
|
|
|
n = node->child; |
|
assert(n); |
|
|
|
assert(MDOC_TEXT == n->type); |
|
word(p, n->data.text.string); |
|
|
|
if (NULL == (n = n->next)) |
|
return(0); |
|
|
|
assert(MDOC_TEXT == n->type); |
|
p->flags |= TERMP_NOSPACE; |
|
word(p, "\\("); |
|
p->flags |= TERMP_NOSPACE; |
|
word(p, n->data.text.string); |
|
p->flags |= TERMP_NOSPACE; |
|
word(p, "\\)"); |
|
|
|
return(0); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
size_t |
static int |
term_hspan(const struct roffsu *su) |
termp_sh_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
{ |
|
double r; |
|
|
switch (node->type) { |
/* XXX: CM, IN, and PT are approximations. */ |
case (MDOC_HEAD): |
|
vspace(p); |
switch (su->unit) { |
p->flags |= TERMP_BOLD; |
case (SCALE_CM): |
|
r = 4 * su->scale; |
break; |
break; |
case (MDOC_BODY): |
case (SCALE_IN): |
p->offset += 4; |
/* XXX: this is an approximation. */ |
|
r = 10 * su->scale; |
break; |
break; |
default: |
case (SCALE_PC): |
|
r = (10 * su->scale) / 6; |
break; |
break; |
} |
case (SCALE_PT): |
return(1); |
r = (10 * su->scale) / 72; |
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
termp_op_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
|
|
switch (node->type) { |
|
case (MDOC_BODY): |
|
word(p, "\\["); |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
break; |
|
case (SCALE_MM): |
|
r = su->scale / 1000; /* FIXME: double-check. */ |
|
break; |
|
case (SCALE_VS): |
|
r = su->scale * 2 - 1; /* FIXME: double-check. */ |
|
break; |
default: |
default: |
|
r = su->scale; |
break; |
break; |
} |
} |
return(1); |
|
} |
|
|
|
|
if (r < 0.0) |
/* ARGSUSED */ |
r = 0.0; |
static int |
return((size_t)/* LINTED */ |
termp_fl_pre(struct termp *p, const struct mdoc_meta *meta, |
r); |
const struct mdoc_node *node) |
|
{ |
|
|
|
p->flags |= TERMP_BOLD; |
|
word(p, "-"); |
|
p->flags |= TERMP_NOSPACE; |
|
return(1); |
|
} |
|
|
|
|
|
static void |
|
termprint_r(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
int dochild; |
|
|
|
/* Pre-processing ----------------- */ |
|
|
|
dochild = 1; |
|
|
|
if (MDOC_TEXT != node->type) { |
|
if (termacts[node->tok].pre) |
|
if ( ! (*termacts[node->tok].pre)(p, meta, node)) |
|
dochild = 0; |
|
} else /* MDOC_TEXT == node->type */ |
|
word(p, node->data.text.string); |
|
|
|
/* Children ---------------------- */ |
|
|
|
if (dochild && NULL == node->child) { |
|
/* No-child processing. */ |
|
switch (node->type) { |
|
case (MDOC_ELEM): |
|
switch (node->tok) { |
|
case (MDOC_Nm): |
|
word(p, "progname"); /* TODO */ |
|
break; |
|
case (MDOC_Ar): |
|
word(p, "..."); |
|
break; |
|
default: |
|
break; |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
} else if (dochild) |
|
termprint_r(p, meta, node->child); |
|
|
|
/* Post-processing --------------- */ |
|
|
|
if (MDOC_TEXT != node->type) { |
|
if (termacts[node->tok].post) |
|
if ( ! (*termacts[node->tok].post)(p, meta, node)) |
|
return; |
|
} |
|
|
|
/* Siblings ---------------------- */ |
|
|
|
if (node->next) |
|
termprint_r(p, meta, node->next); |
|
} |
|
|
|
|
|
static void |
|
termprint_footer(struct termp *p, const struct mdoc_meta *meta) |
|
{ |
|
struct tm *tm; |
|
char *buf, *os; |
|
size_t sz, osz, ssz, i; |
|
|
|
if (NULL == (buf = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
if (NULL == (os = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
|
|
tm = localtime(&meta->date); |
|
if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm)) |
|
err(1, "strftime"); |
|
|
|
osz = strlcpy(os, meta->os, p->rmargin); |
|
|
|
sz = strlen(buf); |
|
ssz = sz + osz + 1; |
|
|
|
if (ssz > p->rmargin) { |
|
ssz -= p->rmargin; |
|
assert(ssz <= osz); |
|
os[osz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = p->rmargin - ssz + 1; |
|
|
|
printf("\n"); |
|
printf("%s", os); |
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s\n", buf); |
|
fflush(stdout); |
|
|
|
free(buf); |
|
free(os); |
|
} |
|
|
|
|
|
static void |
|
termprint_header(struct termp *p, const struct mdoc_meta *meta) |
|
{ |
|
char *msec, *buf, *title, *pp; |
|
size_t ssz, tsz, ttsz, i;; |
|
|
|
if (NULL == (buf = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
if (NULL == (title = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
|
|
if (NULL == (pp = mdoc_vol2a(meta->vol))) |
|
switch (meta->msec) { |
|
case (MSEC_1): |
|
/* FALLTHROUGH */ |
|
case (MSEC_6): |
|
/* FALLTHROUGH */ |
|
case (MSEC_7): |
|
pp = mdoc_vol2a(VOL_URM); |
|
break; |
|
case (MSEC_8): |
|
pp = mdoc_vol2a(VOL_SMM); |
|
break; |
|
case (MSEC_2): |
|
/* FALLTHROUGH */ |
|
case (MSEC_3): |
|
/* FALLTHROUGH */ |
|
case (MSEC_4): |
|
/* FALLTHROUGH */ |
|
case (MSEC_5): |
|
pp = mdoc_vol2a(VOL_PRM); |
|
break; |
|
case (MSEC_9): |
|
pp = mdoc_vol2a(VOL_KM); |
|
break; |
|
default: |
|
/* FIXME: capitalise. */ |
|
if (NULL == (pp = mdoc_msec2a(meta->msec))) |
|
pp = mdoc_msec2a(MSEC_local); |
|
break; |
|
} |
|
assert(pp); |
|
|
|
tsz = strlcpy(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
|
|
if ((pp = mdoc_arch2a(meta->arch))) { |
|
tsz = strlcat(buf, " (", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, ")", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
} |
|
|
|
ttsz = strlcpy(title, meta->title, p->rmargin); |
|
|
|
if (NULL == (msec = mdoc_msec2a(meta->msec))) |
|
msec = ""; |
|
|
|
ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
|
|
|
if (ssz > p->rmargin) { |
|
if ((ssz -= p->rmargin) % 2) |
|
ssz++; |
|
ssz /= 2; |
|
|
|
assert(ssz <= ttsz); |
|
title[ttsz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = ((p->rmargin - ssz) / 2) + 1; |
|
|
|
printf("%s(%s)", title, msec); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s", buf); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s(%s)\n", title, msec); |
|
fflush(stdout); |
|
|
|
free(title); |
|
free(buf); |
|
} |
|
|
|
|
|
int |
|
termprint(const struct mdoc_node *node, |
|
const struct mdoc_meta *meta) |
|
{ |
|
struct termp p; |
|
|
|
if (ERR == setupterm(NULL, STDOUT_FILENO, NULL)) |
|
return(0); |
|
|
|
p.maxrmargin = columns < 60 ? 60 : (size_t)columns; |
|
p.rmargin = p.maxrmargin; |
|
p.maxcols = 1024; |
|
p.offset = p.col = 0; |
|
p.flags = TERMP_NOSPACE; |
|
|
|
if (NULL == (p.buf = malloc(p.maxcols))) |
|
err(1, "malloc"); |
|
|
|
termprint_header(&p, meta); |
|
termprint_r(&p, meta, node); |
|
termprint_footer(&p, meta); |
|
|
|
free(p.buf); |
|
|
|
return(1); |
|
} |
} |
|
|
|
|