version 1.2, 2009/02/20 23:35:36 |
version 1.123, 2009/11/06 10:31:32 |
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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. |
|
*/ |
*/ |
#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 "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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/* FIXME: accomodate non-breaking, non-collapsing white-space. */ |
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/* FIXME: accomodate non-breaking, collapsing white-space. */ |
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enum termesc { |
static struct termp *term_alloc(enum termenc); |
ESC_CLEAR, |
static void term_free(struct termp *); |
ESC_BOLD, |
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ESC_UNDERLINE |
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}; |
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struct termp { |
static void do_escaped(struct termp *, const char **); |
size_t maxvisible; |
static void do_special(struct termp *, |
size_t maxcols; |
const char *, size_t); |
size_t indent; |
static void do_reserved(struct termp *, |
size_t col; |
const char *, size_t); |
int flags; |
static void buffer(struct termp *, char); |
#define TERMP_BOLD (1 << 0) |
static void encode(struct termp *, char); |
#define TERMP_UNDERLINE (1 << 1) |
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#define TERMP_NOSPACE (1 << 2) |
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char *buf; |
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}; |
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struct termact { |
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int (*pre)(struct termp *, |
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const struct mdoc_meta *, |
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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 *, |
void * |
const struct mdoc_meta *, |
ascii_alloc(void) |
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 void newln(struct termp *); |
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static void vspace(struct termp *); |
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static void pword(struct termp *, const char *, size_t); |
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static void word(struct termp *, const char *); |
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static int termp_it_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_ns_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_pp_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_fl_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_op_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_op_post(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_bl_post(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_sh_post(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_sh_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_nd_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_bold_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_under_pre(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_bold_post(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static int termp_under_post(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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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, NULL }, /* 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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{ NULL, 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 void |
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flush(struct termp *p) |
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{ |
{ |
size_t i, j, vsz, vis, maxvis; |
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maxvis = p->maxvisible - (p->indent * 4); |
return(term_alloc(TERMENC_ASCII)); |
vis = 0; |
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for (j = 0; j < (p->indent * 4); j++) |
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putchar(' '); |
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for (i = 0; i < p->col; i++) { |
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for (j = i, vsz = 0; j < p->col; j++) { |
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if (isspace(p->buf[j])) |
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break; |
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else if (27 == p->buf[j]) { |
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assert(j + 4 <= p->col); |
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j += 3; |
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} else |
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vsz++; |
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} |
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assert(vsz > 0); |
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if (vis && vis + vsz >= maxvis) { |
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putchar('\n'); |
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for (j = 0; j < (p->indent * 4); j++) |
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putchar(' '); |
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vis = 0; |
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} |
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for ( ; i < p->col; i++) { |
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if (isspace(p->buf[i])) |
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break; |
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putchar(p->buf[i]); |
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} |
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vis += vsz; |
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if (i < p->col) { |
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putchar(' '); |
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vis++; |
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} |
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} |
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putchar('\n'); |
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p->col = 0; |
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} |
} |
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static void |
void |
newln(struct termp *p) |
terminal_free(void *arg) |
{ |
{ |
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p->flags |= TERMP_NOSPACE; |
term_free((struct termp *)arg); |
if (0 == p->col) |
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return; |
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flush(p); |
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} |
} |
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static void |
static void |
vspace(struct termp *p) |
term_free(struct termp *p) |
{ |
{ |
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newln(p); |
if (p->buf) |
putchar('\n'); |
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 void |
static struct termp * |
chara(struct termp *p, char c) |
term_alloc(enum termenc enc) |
{ |
{ |
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struct termp *p; |
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if (p->col + 1 >= p->maxcols) |
p = calloc(1, sizeof(struct termp)); |
errx(1, "line overrun"); |
if (NULL == p) { |
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perror(NULL); |
p->buf[(p->col)++] = c; |
exit(EXIT_FAILURE); |
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} |
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p->maxrmargin = 78; |
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p->enc = enc; |
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return(p); |
} |
} |
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static void |
/* |
escape(struct termp *p, enum termesc esc) |
* 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. |
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* |
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* Specifically, a line is whatever's in p->buf of length p->col, which |
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* is zeroed after this function returns. |
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* |
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* The usage of termp:flags is as follows: |
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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) |
{ |
{ |
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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 vsz; /* visual characters to write to 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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size_t maxvis, mmax; |
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static int overstep = 0; |
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if (p->col + 4 >= p->maxcols) |
/* |
errx(1, "line overrun"); |
* First, establish the maximum columns of "visible" content. |
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* This is usually the difference between the right-margin and |
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* an indentation, but can be, for tagged lists or columns, a |
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* small set of values. |
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*/ |
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p->buf[(p->col)++] = 27; |
assert(p->offset < p->rmargin); |
p->buf[(p->col)++] = '['; |
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switch (esc) { |
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case (ESC_CLEAR): |
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p->buf[(p->col)++] = '0'; |
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break; |
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case (ESC_BOLD): |
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p->buf[(p->col)++] = '1'; |
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break; |
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case (ESC_UNDERLINE): |
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p->buf[(p->col)++] = '4'; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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p->buf[(p->col)++] = 'm'; |
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} |
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maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
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/* LINTED */ |
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0 : p->rmargin - p->offset - overstep; |
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mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
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/* LINTED */ |
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0 : p->maxrmargin - p->offset - overstep; |
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static void |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
pword(struct termp *p, const char *word, size_t len) |
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{ |
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size_t i; |
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assert(len > 0); |
/* |
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* FIXME: if bp is zero, we still output the first word before |
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* breaking the line. |
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*/ |
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if ( ! (p->flags & TERMP_NOSPACE)) |
vis = 0; |
chara(p, ' '); |
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p->flags &= ~TERMP_NOSPACE; |
/* |
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* If in the standard case (left-justified), then begin with our |
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* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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*/ |
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if (p->flags & TERMP_BOLD) |
if ( ! (p->flags & TERMP_NOLPAD)) |
escape(p, ESC_BOLD); |
/* LINTED */ |
if (p->flags & TERMP_UNDERLINE) |
for (j = 0; j < (int)p->offset; j++) |
escape(p, ESC_UNDERLINE); |
putchar(' '); |
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for (i = 0; i < len; i++) |
for (i = 0; i < (int)p->col; i++) { |
chara(p, word[i]); |
/* |
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* Count up visible word characters. Control sequences |
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* (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). |
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*/ |
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if (p->flags & TERMP_BOLD || |
/* LINTED */ |
p->flags & TERMP_UNDERLINE) |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
escape(p, ESC_CLEAR); |
if (j && ' ' == p->buf[j]) |
} |
break; |
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else if (8 == p->buf[j]) |
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vsz--; |
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else |
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vsz++; |
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} |
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/* |
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* Choose the number of blanks to prepend: no blank at the |
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* beginning of a line, one between words -- but do not |
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* actually write them yet. |
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*/ |
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vbl = (size_t)(0 == vis ? 0 : 1); |
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static void |
/* |
word(struct termp *p, const char *word) |
* Find out whether we would exceed the right margin. |
{ |
* If so, break to the next line. (TODO: hyphenate) |
size_t i, j, len; |
* Otherwise, write the chosen number of blanks now. |
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*/ |
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if (vis && vis + vbl + vsz > bp) { |
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putchar('\n'); |
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if (TERMP_NOBREAK & p->flags) { |
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for (j = 0; j < (int)p->rmargin; j++) |
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putchar(' '); |
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vis = p->rmargin - p->offset; |
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} else { |
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for (j = 0; j < (int)p->offset; j++) |
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putchar(' '); |
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vis = 0; |
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} |
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/* Remove the overstep width. */ |
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bp += (int)/* LINTED */ |
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overstep; |
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overstep = 0; |
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} else { |
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for (j = 0; j < (int)vbl; j++) |
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putchar(' '); |
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vis += vbl; |
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} |
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/* TODO: delimiters? */ |
/* |
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* Finally, write out the word. |
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*/ |
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for ( ; i < (int)p->col; i++) { |
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if (' ' == p->buf[i]) |
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break; |
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len = strlen(word); |
/* The unit sep. is a non-breaking space. */ |
assert(len > 0); |
if (31 == p->buf[i]) |
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putchar(' '); |
for (j = i = 0; i < len; i++) { |
else |
if ( ! isspace(word[i])) { |
putchar(p->buf[i]); |
j++; |
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continue; |
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} |
} |
if (0 == j) |
vis += vsz; |
continue; |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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j = 0; |
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} |
} |
if (j > 0) { |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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} |
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} |
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p->col = 0; |
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overstep = 0; |
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static int |
if ( ! (TERMP_NOBREAK & p->flags)) { |
termp_it_pre(struct termp *p, const struct mdoc_meta *meta, |
putchar('\n'); |
const struct mdoc_node *node) |
return; |
{ |
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|
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switch (node->type) { |
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case (MDOC_HEAD): |
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/* TODO: only print one, if compat. */ |
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vspace(p); |
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break; |
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default: |
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break; |
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} |
} |
return(1); |
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} |
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|
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if (TERMP_HANG & p->flags) { |
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/* We need one blank after the tag. */ |
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overstep = /* LINTED */ |
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vis - maxvis + 1; |
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static int |
/* |
termp_bold_post(struct termp *p, const struct mdoc_meta *meta, |
* Behave exactly the same way as groff: |
const struct mdoc_node *node) |
* If we have overstepped the margin, temporarily move |
{ |
* 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 (overstep >= -1) { |
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assert((int)maxvis + overstep >= 0); |
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/* LINTED */ |
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maxvis += overstep; |
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} else |
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overstep = 0; |
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p->flags &= ~TERMP_BOLD; |
} else if (TERMP_DANGLE & p->flags) |
return(1); |
return; |
} |
|
|
|
|
/* Right-pad. */ |
static int |
if (maxvis > vis + /* LINTED */ |
termp_under_pre(struct termp *p, const struct mdoc_meta *meta, |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) |
const struct mdoc_node *node) |
for ( ; vis < maxvis; vis++) |
{ |
putchar(' '); |
|
else { /* ...or newline break. */ |
p->flags |= TERMP_UNDERLINE; |
putchar('\n'); |
return(1); |
for (i = 0; i < (int)p->rmargin; i++) |
|
putchar(' '); |
|
} |
} |
} |
|
|
|
|
static int |
/* |
termp_bold_pre(struct termp *p, const struct mdoc_meta *meta, |
* A newline only breaks an existing line; it won't assert vertical |
const struct mdoc_node *node) |
* space. All data in the output buffer is flushed prior to the newline |
|
* assertion. |
|
*/ |
|
void |
|
term_newln(struct termp *p) |
{ |
{ |
|
|
p->flags |= TERMP_BOLD; |
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
termp_ns_pre(struct termp *p, const struct mdoc_meta *meta, |
|
const struct mdoc_node *node) |
|
{ |
|
|
|
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
return(1); |
if (0 == p->col) { |
|
p->flags &= ~TERMP_NOLPAD; |
|
return; |
|
} |
|
term_flushln(p); |
|
p->flags &= ~TERMP_NOLPAD; |
} |
} |
|
|
|
|
static int |
/* |
termp_pp_pre(struct termp *p, const struct mdoc_meta *meta, |
* Asserts a vertical space (a full, empty line-break between lines). |
const struct mdoc_node *node) |
* 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) |
{ |
{ |
|
|
vspace(p); |
term_newln(p); |
return(1); |
putchar('\n'); |
} |
} |
|
|
|
|
static int |
static void |
termp_under_post(struct termp *p, const struct mdoc_meta *meta, |
do_special(struct termp *p, const char *word, size_t len) |
const struct mdoc_node *node) |
|
{ |
{ |
|
const char *rhs; |
|
size_t sz; |
|
int i; |
|
|
p->flags &= ~TERMP_UNDERLINE; |
rhs = chars_a2ascii(p->symtab, word, len, &sz); |
return(1); |
|
} |
|
|
|
|
if (NULL == rhs) { |
static int |
#if 0 |
termp_nd_pre(struct termp *p, const struct mdoc_meta *meta, |
fputs("Unknown special character: ", stderr); |
const struct mdoc_node *node) |
for (i = 0; i < (int)len; i++) |
{ |
fputc(word[i], stderr); |
|
fputc('\n', stderr); |
word(p, "-"); |
#endif |
return(1); |
return; |
} |
|
|
|
|
|
static int |
|
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++) |
|
encode(p, rhs[i]); |
} |
} |
|
|
|
|
static int |
static void |
termp_op_post(struct termp *p, const struct mdoc_meta *meta, |
do_reserved(struct termp *p, const char *word, size_t len) |
const struct mdoc_node *node) |
|
{ |
{ |
|
const char *rhs; |
|
size_t sz; |
|
int i; |
|
|
switch (node->type) { |
rhs = chars_a2res(p->symtab, word, len, &sz); |
case (MDOC_BODY): |
|
p->flags |= TERMP_NOSPACE; |
|
word(p, "\\(rB"); |
|
break; |
|
default: |
|
break; |
|
} |
|
return(1); |
|
} |
|
|
|
|
if (NULL == rhs) { |
static int |
#if 0 |
termp_sh_post(struct termp *p, const struct mdoc_meta *meta, |
fputs("Unknown reserved word: ", stderr); |
const struct mdoc_node *node) |
for (i = 0; i < (int)len; i++) |
{ |
fputc(word[i], stderr); |
|
fputc('\n', stderr); |
switch (node->type) { |
#endif |
case (MDOC_HEAD): |
return; |
p->flags &= ~TERMP_BOLD; |
|
newln(p); |
|
break; |
|
case (MDOC_BODY): |
|
newln(p); |
|
(p->indent)--; |
|
break; |
|
default: |
|
break; |
|
} |
} |
return(1); |
for (i = 0; i < (int)sz; i++) |
|
encode(p, rhs[i]); |
} |
} |
|
|
|
|
static int |
/* |
termp_sh_pre(struct termp *p, const struct mdoc_meta *meta, |
* Handle an escape sequence: determine its length and pass it to the |
const struct mdoc_node *node) |
* escape-symbol look table. Note that we assume mdoc(3) has validated |
|
* the escape sequence (we assert upon badly-formed escape sequences). |
|
*/ |
|
static void |
|
do_escaped(struct termp *p, const char **word) |
{ |
{ |
|
int j, type, sv, t, lim; |
|
const char *wp; |
|
|
switch (node->type) { |
wp = *word; |
case (MDOC_HEAD): |
type = 1; |
vspace(p); |
|
p->flags |= TERMP_BOLD; |
|
break; |
|
case (MDOC_BODY): |
|
(p->indent)++; |
|
break; |
|
default: |
|
break; |
|
} |
|
return(1); |
|
} |
|
|
|
|
if ('\0' == *(++wp)) { |
static int |
*word = wp; |
termp_op_pre(struct termp *p, const struct mdoc_meta *meta, |
return; |
const struct mdoc_node *node) |
|
{ |
|
|
|
switch (node->type) { |
|
case (MDOC_BODY): |
|
word(p, "\\(lB"); |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
|
default: |
|
break; |
|
} |
} |
return(1); |
|
} |
|
|
|
|
if ('(' == *wp) { |
|
wp++; |
|
if ('\0' == *wp || '\0' == *(wp + 1)) { |
|
*word = '\0' == *wp ? wp : wp + 1; |
|
return; |
|
} |
|
|
static int |
do_special(p, wp, 2); |
termp_fl_pre(struct termp *p, const struct mdoc_meta *meta, |
*word = ++wp; |
const struct mdoc_node *node) |
return; |
{ |
|
|
|
p->flags |= TERMP_BOLD; |
} else if ('*' == *wp) { |
word(p, "-"); |
if ('\0' == *(++wp)) { |
p->flags |= TERMP_NOSPACE; |
*word = wp; |
return(1); |
return; |
} |
} |
|
|
|
switch (*wp) { |
static void |
case ('('): |
termprint_r(struct termp *p, const struct mdoc_meta *meta, |
wp++; |
const struct mdoc_node *node) |
if ('\0' == *wp || '\0' == *(wp + 1)) { |
{ |
*word = '\0' == *wp ? wp : wp + 1; |
|
|
/* Pre-processing ----------------- */ |
|
|
|
if (MDOC_TEXT != node->type) { |
|
if (termacts[node->tok].pre) |
|
if ( ! (*termacts[node->tok].pre)(p, meta, node)) |
|
return; |
return; |
} else /* MDOC_TEXT == node->type */ |
|
word(p, node->data.text.string); |
|
|
|
/* Children ---------------------- */ |
|
|
|
if (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; |
|
} |
} |
|
|
|
do_reserved(p, wp, 2); |
|
*word = ++wp; |
|
return; |
|
case ('['): |
|
type = 0; |
break; |
break; |
default: |
default: |
break; |
do_reserved(p, wp, 1); |
|
*word = wp; |
|
return; |
} |
} |
} else |
|
termprint_r(p, meta, node->child); |
|
|
|
/* Post-processing --------------- */ |
} else if ('s' == *wp) { |
|
/* This closely follows mandoc_special(). */ |
|
if ('\0' == *(++wp)) { |
|
*word = wp; |
|
return; |
|
} |
|
|
if (MDOC_TEXT != node->type) { |
t = 0; |
if (termacts[node->tok].post) |
lim = 1; |
if ( ! (*termacts[node->tok].post)(p, meta, node)) |
|
return; |
|
} |
|
|
|
/* Siblings ---------------------- */ |
if (*wp == '\'') { |
|
lim = 0; |
|
t = 1; |
|
++wp; |
|
} else if (*wp == '[') { |
|
lim = 0; |
|
t = 2; |
|
++wp; |
|
} else if (*wp == '(') { |
|
lim = 2; |
|
t = 3; |
|
++wp; |
|
} |
|
|
if (node->next) |
if (*wp == '+' || *wp == '-') |
termprint_r(p, meta, node->next); |
++wp; |
} |
|
|
|
|
if (*wp == '\'') { |
|
if (t) { |
|
*word = wp; |
|
return; |
|
} |
|
lim = 0; |
|
t = 1; |
|
++wp; |
|
} else if (*wp == '[') { |
|
if (t) { |
|
*word = wp; |
|
return; |
|
} |
|
lim = 0; |
|
t = 2; |
|
++wp; |
|
} else if (*wp == '(') { |
|
if (t) { |
|
*word = wp; |
|
return; |
|
} |
|
lim = 2; |
|
t = 3; |
|
++wp; |
|
} |
|
|
static void |
if ( ! isdigit((u_char)*wp)) { |
termprint_footer(struct termp *p, const struct mdoc_meta *meta) |
*word = --wp; |
{ |
return; |
struct tm *tm; |
} |
char *buf, *os; |
|
size_t sz, osz, ssz, i; |
|
|
|
if (NULL == (buf = malloc(p->maxvisible))) |
for (j = 0; isdigit((u_char)*wp); j++) { |
err(1, "malloc"); |
if (lim && j >= lim) |
if (NULL == (os = malloc(p->maxvisible))) |
break; |
err(1, "malloc"); |
++wp; |
|
} |
|
|
tm = localtime(&meta->date); |
if (t && t < 3) { |
if (NULL == strftime(buf, p->maxvisible, "%B %d, %Y", tm)) |
if (1 == t && *wp != '\'') { |
err(1, "strftime"); |
*word = --wp; |
|
return; |
|
} |
|
if (2 == t && *wp != ']') { |
|
*word = --wp; |
|
return; |
|
} |
|
++wp; |
|
} |
|
*word = --wp; |
|
return; |
|
|
osz = strlcpy(os, meta->os, p->maxvisible); |
} else if ('f' == *wp) { |
|
if ('\0' == *(++wp)) { |
|
*word = wp; |
|
return; |
|
} |
|
|
sz = strlen(buf); |
switch (*wp) { |
ssz = sz + osz + 1; |
case ('3'): |
|
/* FALLTHROUGH */ |
|
case ('B'): |
|
p->metamask = p->metafont; |
|
p->metafont |= METAF_BOLD; |
|
break; |
|
case ('2'): |
|
/* FALLTHROUGH */ |
|
case ('I'): |
|
p->metamask = p->metafont; |
|
p->metafont |= METAF_UNDER; |
|
break; |
|
case ('P'): |
|
sv = p->metamask; |
|
p->metamask = p->metafont; |
|
p->metafont = sv; |
|
break; |
|
case ('1'): |
|
/* FALLTHROUGH */ |
|
case ('R'): |
|
p->metamask = p->metafont; |
|
p->metafont &= ~METAF_UNDER; |
|
p->metafont &= ~METAF_BOLD; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
if (ssz > p->maxvisible) { |
*word = wp; |
ssz -= p->maxvisible; |
return; |
assert(ssz <= osz); |
|
os[osz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = p->maxvisible - ssz + 1; |
|
|
|
printf("\n"); |
} else if ('[' != *wp) { |
printf("%s", os); |
do_special(p, wp, 1); |
for (i = 0; i < ssz; i++) |
*word = wp; |
printf(" "); |
return; |
|
} |
|
|
printf("%s\n", buf); |
wp++; |
fflush(stdout); |
for (j = 0; *wp && ']' != *wp; wp++, j++) |
|
/* Loop... */ ; |
|
|
free(buf); |
if ('\0' == *wp) { |
free(os); |
*word = wp; |
|
return; |
|
} |
|
|
|
if (type) |
|
do_special(p, wp - j, (size_t)j); |
|
else |
|
do_reserved(p, wp - j, (size_t)j); |
|
*word = wp; |
} |
} |
|
|
|
|
static void |
/* |
termprint_header(struct termp *p, const struct mdoc_meta *meta) |
* Handle pwords, partial words, which may be either a single word or a |
|
* phrase that cannot be broken down (such as a literal string). This |
|
* handles word styling. |
|
*/ |
|
void |
|
term_word(struct termp *p, const char *word) |
{ |
{ |
char *msec, *buf, *title, *pp; |
const char *sv; |
size_t ssz, tsz, ttsz, i;; |
|
|
|
if (NULL == (buf = malloc(p->maxvisible))) |
sv = word; |
err(1, "malloc"); |
|
if (NULL == (title = malloc(p->maxvisible))) |
|
err(1, "malloc"); |
|
|
|
if (NULL == (pp = mdoc_vol2a(meta->vol))) |
if (word[0] && '\0' == word[1]) |
switch (meta->msec) { |
switch (word[0]) { |
case (MSEC_1): |
case('.'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_6): |
case(','): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_7): |
case(';'): |
pp = mdoc_vol2a(VOL_URM); |
|
break; |
|
case (MSEC_8): |
|
pp = mdoc_vol2a(VOL_SMM); |
|
break; |
|
case (MSEC_2): |
|
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_3): |
case(':'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_4): |
case('?'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_5): |
case('!'): |
pp = mdoc_vol2a(VOL_PRM); |
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
/* FALLTHROUGH */ |
|
case('}'): |
|
if ( ! (TERMP_IGNDELIM & p->flags)) |
|
p->flags |= TERMP_NOSPACE; |
break; |
break; |
case (MSEC_9): |
|
pp = mdoc_vol2a(VOL_KM); |
|
break; |
|
default: |
default: |
/* FIXME: capitalise. */ |
|
if (NULL == (pp = mdoc_msec2a(meta->msec))) |
|
pp = mdoc_msec2a(MSEC_local); |
|
break; |
break; |
} |
} |
assert(pp); |
|
|
|
tsz = strlcpy(buf, pp, p->maxvisible); |
if ( ! (TERMP_NOSPACE & p->flags)) |
assert(tsz < p->maxvisible); |
buffer(p, ' '); |
|
|
if ((pp = mdoc_arch2a(meta->arch))) { |
if ( ! (p->flags & TERMP_NONOSPACE)) |
tsz = strlcat(buf, " (", p->maxvisible); |
p->flags &= ~TERMP_NOSPACE; |
assert(tsz < p->maxvisible); |
|
tsz = strlcat(buf, pp, p->maxvisible); |
|
assert(tsz < p->maxvisible); |
|
tsz = strlcat(buf, ")", p->maxvisible); |
|
assert(tsz < p->maxvisible); |
|
} |
|
|
|
ttsz = strlcpy(title, meta->title, p->maxvisible); |
for ( ; *word; word++) |
|
if ('\\' != *word) |
|
encode(p, *word); |
|
else |
|
do_escaped(p, &word); |
|
|
if (NULL == (msec = mdoc_msec2a(meta->msec))) |
if (sv[0] && 0 == sv[1]) |
msec = ""; |
switch (sv[0]) { |
|
case('('): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
/* FALLTHROUGH */ |
|
case('{'): |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
|
|
|
if (ssz > p->maxvisible) { |
/* |
if ((ssz -= p->maxvisible) % 2) |
* Insert a single character into the line-buffer. If the buffer's |
ssz++; |
* space is exceeded, then allocate more space by doubling the buffer |
ssz /= 2; |
* size. |
|
*/ |
assert(ssz <= ttsz); |
static void |
title[ttsz - ssz] = 0; |
buffer(struct termp *p, char c) |
ssz = 1; |
{ |
} else |
size_t s; |
ssz = ((p->maxvisible - ssz) / 2) + 1; |
|
|
|
printf("%s(%s)", title, msec); |
if (p->col + 1 >= p->maxcols) { |
|
if (0 == p->maxcols) |
|
p->maxcols = 256; |
|
s = p->maxcols * 2; |
|
p->buf = realloc(p->buf, s); |
|
if (NULL == p->buf) { |
|
perror(NULL); |
|
exit(EXIT_FAILURE); |
|
} |
|
p->maxcols = s; |
|
} |
|
p->buf[(int)(p->col)++] = c; |
|
} |
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s", buf); |
static void |
|
encode(struct termp *p, char c) |
for (i = 0; i < ssz; i++) |
{ |
printf(" "); |
|
|
if (isgraph((u_char)c)) { |
printf("%s(%s)\n", title, msec); |
if (p->under || METAF_UNDER & p->metafont) { |
fflush(stdout); |
buffer(p, '_'); |
|
buffer(p, 8); |
free(title); |
} |
free(buf); |
if (p->bold || METAF_BOLD & p->metafont) { |
|
buffer(p, c); |
|
buffer(p, 8); |
|
} |
|
} |
|
buffer(p, c); |
} |
} |
|
|
|
|
int |
size_t |
termprint(const struct mdoc_node *node, |
term_vspan(const struct roffsu *su) |
const struct mdoc_meta *meta) |
|
{ |
{ |
struct termp p; |
double r; |
|
|
if (ERR == setupterm(NULL, STDOUT_FILENO, NULL)) |
switch (su->unit) { |
return(0); |
case (SCALE_CM): |
|
r = su->scale * 2; |
|
break; |
|
case (SCALE_IN): |
|
r = su->scale * 6; |
|
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: |
|
r = su->scale - 1; |
|
break; |
|
} |
|
|
p.maxvisible = columns < 60 ? 60 : (size_t)columns; |
if (r < 0.0) |
p.maxcols = 1024; |
r = 0.0; |
p.indent = p.col = 0; |
return(/* LINTED */(size_t) |
p.flags = TERMP_NOSPACE; |
r); |
|
} |
|
|
if (NULL == (p.buf = malloc(p.maxcols))) |
|
err(1, "malloc"); |
|
|
|
termprint_header(&p, meta); |
size_t |
termprint_r(&p, meta, node); |
term_hspan(const struct roffsu *su) |
termprint_footer(&p, meta); |
{ |
|
double r; |
|
|
free(p.buf); |
/* XXX: CM, IN, and PT are approximations. */ |
|
|
return(1); |
switch (su->unit) { |
|
case (SCALE_CM): |
|
r = 4 * su->scale; |
|
break; |
|
case (SCALE_IN): |
|
/* XXX: this is an approximation. */ |
|
r = 10 * su->scale; |
|
break; |
|
case (SCALE_PC): |
|
r = (10 * su->scale) / 6; |
|
break; |
|
case (SCALE_PT): |
|
r = (10 * su->scale) / 72; |
|
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: |
|
r = su->scale; |
|
break; |
|
} |
|
|
|
if (r < 0.0) |
|
r = 0.0; |
|
return((size_t)/* LINTED */ |
|
r); |
} |
} |
|
|
|
|