diff options
Diffstat (limited to 'term.c')
| -rw-r--r-- | term.c | 598 |
1 files changed, 26 insertions, 572 deletions
@@ -1,6 +1,6 @@ /* $Id$ */ /* - * 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 * purpose with or without fee is hereby granted, provided that the @@ -18,44 +18,19 @@ */ #include <assert.h> #include <ctype.h> -#include <curses.h> #include <err.h> #include <stdlib.h> #include <stdio.h> #include <string.h> -#include <term.h> #include <unistd.h> -#include "private.h" +#include "term.h" +#include "private.h" /* XXX */ -enum termesc { - ESC_CLEAR, - ESC_BOLD, - ESC_UNDERLINE -}; - -struct termp { - size_t rmargin; - size_t maxrmargin; - size_t maxcols; - size_t offset; - size_t col; - int flags; -#define TERMP_BOLD (1 << 0) /* Embolden words. */ -#define TERMP_UNDERLINE (1 << 1) /* Underline words. */ -#define TERMP_NOSPACE (1 << 2) /* No space before words. */ -#define TERMP_NOLPAD (1 << 3) /* No left-padding. */ -#define TERMP_NOBREAK (1 << 4) /* No break after line */ - char *buf; -}; - -struct termact { - int (*pre)(struct termp *, - const struct mdoc_meta *, - const struct mdoc_node *); - int (*post)(struct termp *, - const struct mdoc_meta *, - const struct mdoc_node *); +enum termstyle { + STYLE_CLEAR, + STYLE_BOLD, + STYLE_UNDERLINE }; static void termprint_r(struct termp *, @@ -66,175 +41,12 @@ static void termprint_header(struct termp *, static void termprint_footer(struct termp *, const struct mdoc_meta *); -static int arg_hasattr(int, size_t, - const struct mdoc_arg *); -static int arg_getattr(int, size_t, - const struct mdoc_arg *); - -static void newln(struct termp *); -static void vspace(struct termp *); static void pword(struct termp *, const char *, size_t); -static void word(struct termp *, const char *); - -#define decl_prepost(name, suffix) \ -static int name##_##suffix(struct termp *, \ - const struct mdoc_meta *, \ - const struct mdoc_node *) - -#define decl_pre(name) decl_prepost(name, pre) -#define decl_post(name) decl_prepost(name, post) - -decl_pre(termp_fl); -decl_pre(termp_it); -decl_pre(termp_nd); -decl_pre(termp_ns); -decl_pre(termp_op); -decl_pre(termp_pp); -decl_pre(termp_sh); -decl_pre(termp_xr); - -decl_post(termp_bl); -decl_post(termp_it); -decl_post(termp_op); -decl_post(termp_sh); - -decl_pre(termp_bold); -decl_pre(termp_under); - -decl_post(termp_bold); -decl_post(termp_under); - -const struct termact termacts[MDOC_MAX] = { - { NULL, NULL }, /* \" */ - { NULL, NULL }, /* Dd */ - { NULL, NULL }, /* Dt */ - { NULL, NULL }, /* Os */ - { termp_sh_pre, termp_sh_post }, /* Sh */ - { NULL, NULL }, /* Ss */ - { termp_pp_pre, NULL }, /* Pp */ - { NULL, NULL }, /* D1 */ - { NULL, NULL }, /* Dl */ - { NULL, NULL }, /* Bd */ - { NULL, NULL }, /* Ed */ - { NULL, termp_bl_post }, /* Bl */ - { NULL, NULL }, /* El */ - { termp_it_pre, termp_it_post }, /* It */ - { NULL, NULL }, /* Ad */ - { NULL, NULL }, /* An */ - { termp_under_pre, termp_under_post }, /* Ar */ - { NULL, NULL }, /* Cd */ - { NULL, NULL }, /* Cm */ - { NULL, NULL }, /* Dv */ - { NULL, NULL }, /* Er */ - { NULL, NULL }, /* Ev */ - { NULL, NULL }, /* Ex */ - { NULL, NULL }, /* Fa */ - { NULL, NULL }, /* Fd */ - { termp_fl_pre, termp_bold_post }, /* Fl */ - { NULL, NULL }, /* Fn */ - { NULL, NULL }, /* Ft */ - { NULL, NULL }, /* Ic */ - { NULL, NULL }, /* In */ - { NULL, NULL }, /* Li */ - { termp_nd_pre, NULL }, /* Nd */ - { termp_bold_pre, termp_bold_post }, /* Nm */ - { termp_op_pre, termp_op_post }, /* Op */ - { NULL, NULL }, /* Ot */ - { NULL, NULL }, /* Pa */ - { NULL, NULL }, /* Rv */ - { NULL, NULL }, /* St */ - { NULL, NULL }, /* Va */ - { NULL, NULL }, /* Vt */ - { termp_xr_pre, NULL }, /* Xr */ - { NULL, NULL }, /* %A */ - { NULL, NULL }, /* %B */ - { NULL, NULL }, /* %D */ - { NULL, NULL }, /* %I */ - { NULL, NULL }, /* %J */ - { NULL, NULL }, /* %N */ - { NULL, NULL }, /* %O */ - { NULL, NULL }, /* %P */ - { NULL, NULL }, /* %R */ - { NULL, NULL }, /* %T */ - { NULL, NULL }, /* %V */ - { NULL, NULL }, /* Ac */ - { NULL, NULL }, /* Ao */ - { NULL, NULL }, /* Aq */ - { NULL, NULL }, /* At */ - { NULL, NULL }, /* Bc */ - { NULL, NULL }, /* Bf */ - { NULL, NULL }, /* Bo */ - { NULL, NULL }, /* Bq */ - { NULL, NULL }, /* Bsx */ - { NULL, NULL }, /* Bx */ - { NULL, NULL }, /* Db */ - { NULL, NULL }, /* Dc */ - { NULL, NULL }, /* Do */ - { NULL, NULL }, /* Dq */ - { NULL, NULL }, /* Ec */ - { NULL, NULL }, /* Ef */ - { NULL, NULL }, /* Em */ - { NULL, NULL }, /* Eo */ - { NULL, NULL }, /* Fx */ - { NULL, NULL }, /* Ms */ - { NULL, NULL }, /* No */ - { termp_ns_pre, NULL }, /* Ns */ - { NULL, NULL }, /* Nx */ - { NULL, NULL }, /* Ox */ - { NULL, NULL }, /* Pc */ - { NULL, NULL }, /* Pf */ - { NULL, NULL }, /* Po */ - { NULL, NULL }, /* Pq */ - { NULL, NULL }, /* Qc */ - { NULL, NULL }, /* Ql */ - { NULL, NULL }, /* Qo */ - { NULL, NULL }, /* Qq */ - { NULL, NULL }, /* Re */ - { NULL, NULL }, /* Rs */ - { NULL, NULL }, /* Sc */ - { NULL, NULL }, /* So */ - { NULL, NULL }, /* Sq */ - { NULL, NULL }, /* Sm */ - { NULL, NULL }, /* Sx */ - { NULL, NULL }, /* Sy */ - { NULL, NULL }, /* Tn */ - { NULL, NULL }, /* Ux */ - { NULL, NULL }, /* Xc */ - { NULL, NULL }, /* Xo */ - { NULL, NULL }, /* Fo */ - { NULL, NULL }, /* Fc */ - { NULL, NULL }, /* Oo */ - { NULL, NULL }, /* Oc */ - { NULL, NULL }, /* Bk */ - { NULL, NULL }, /* Ek */ - { NULL, NULL }, /* Bt */ - { NULL, NULL }, /* Hf */ - { NULL, NULL }, /* Fr */ - { NULL, NULL }, /* Ud */ -}; +static void chara(struct termp *, char); +static void escape(struct termp *, enum termstyle); -static int -arg_hasattr(int arg, size_t argc, const struct mdoc_arg *argv) -{ - - return(-1 != arg_getattr(arg, argc, argv)); -} - - -static int -arg_getattr(int arg, size_t argc, const struct mdoc_arg *argv) -{ - int i; - - for (i = 0; i < (int)argc; i++) - if (argv[i].arg == arg) - return(i); - return(-1); -} - - -static void +void flushln(struct termp *p) { size_t i, j, vsz, vis, maxvis; @@ -333,7 +145,7 @@ flushln(struct termp *p) } -static void +void newln(struct termp *p) { @@ -348,7 +160,7 @@ newln(struct termp *p) } -static void +void vspace(struct termp *p) { @@ -373,7 +185,7 @@ chara(struct termp *p, char c) static void -escape(struct termp *p, enum termesc esc) +escape(struct termp *p, enum termstyle esc) { if (p->col + 4 >= p->maxcols) @@ -382,13 +194,13 @@ escape(struct termp *p, enum termesc esc) p->buf[(p->col)++] = 27; p->buf[(p->col)++] = '['; switch (esc) { - case (ESC_CLEAR): + case (STYLE_CLEAR): p->buf[(p->col)++] = '0'; break; - case (ESC_BOLD): + case (STYLE_BOLD): p->buf[(p->col)++] = '1'; break; - case (ESC_UNDERLINE): + case (STYLE_UNDERLINE): p->buf[(p->col)++] = '4'; break; default: @@ -412,9 +224,9 @@ pword(struct termp *p, const char *word, size_t len) p->flags &= ~TERMP_NOSPACE; if (p->flags & TERMP_BOLD) - escape(p, ESC_BOLD); + escape(p, STYLE_BOLD); if (p->flags & TERMP_UNDERLINE) - escape(p, ESC_UNDERLINE); + escape(p, STYLE_UNDERLINE); /* TODO: escape patterns. */ @@ -423,11 +235,11 @@ pword(struct termp *p, const char *word, size_t len) if (p->flags & TERMP_BOLD || p->flags & TERMP_UNDERLINE) - escape(p, ESC_CLEAR); + escape(p, STYLE_CLEAR); } -static void +void word(struct termp *p, const char *word) { size_t i, j, len; @@ -457,350 +269,13 @@ word(struct termp *p, const char *word) } -/* ARGSUSED */ -static int -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) { - 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; - assert(MDOC_BODY == n->type); - assert(MDOC_Bl == n->tok); - n = n->parent; - bl = &n->data.block; - - /* If `-tag', adjust our margins accordingly. */ - - 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) { - flushln(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); -} - - -/* ARGSUSED */ -static int -termp_it_pre(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) { - 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); - assert(MDOC_It == it->tok); - - n = it->parent; - assert(MDOC_BODY == n->type); - assert(MDOC_Bl == n->tok); - n = n->parent; - bl = &n->data.block; - - /* If `-compact', don't assert vertical space. */ - - if (MDOC_BLOCK == node->type) { - if (arg_hasattr(MDOC_Compact, bl->argc, bl->argv)) - newln(p); - else - vspace(p); - return(1); - } - - assert(MDOC_HEAD == node->type - || MDOC_BODY == node->type); - - /* If `-tag', adjust our margins accordingly. */ - - if (arg_hasattr(MDOC_Tag, bl->argc, bl->argv)) { - i = arg_getattr(MDOC_Width, bl->argc, bl->argv); - assert(i >= 0); /* XXX */ - assert(1 == bl->argv[i].sz); - width = strlen(*bl->argv[i].value); /* XXX */ - - /* FIXME: nested lists. */ - - if (MDOC_HEAD == node->type) { - p->flags |= TERMP_NOBREAK; - p->flags |= TERMP_NOSPACE; - p->rmargin = p->offset + width; - } else { - p->flags |= TERMP_NOSPACE; - p->flags |= TERMP_NOLPAD; - p->offset += width + 1; - } - } - - return(1); -} - - -/* ARGSUSED */ -static int -termp_bold_post(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - p->flags &= ~TERMP_BOLD; - return(1); -} - - -/* ARGSUSED */ -static int -termp_under_pre(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - p->flags |= TERMP_UNDERLINE; - return(1); -} - - -/* ARGSUSED */ -static int -termp_bold_pre(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - p->flags |= TERMP_BOLD; - return(1); -} - - -/* ARGSUSED */ -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 int -termp_pp_pre(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - vspace(p); - return(1); -} - - -/* 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 int -termp_nd_pre(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - word(p, "-"); - return(1); -} - - -/* ARGSUSED */ -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); -} - - -/* ARGSUSED */ -static int -termp_op_post(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - switch (node->type) { - case (MDOC_BODY): - p->flags |= TERMP_NOSPACE; - word(p, "\\]"); - break; - default: - break; - } - return(1); -} - - -/* ARGSUSED */ -static int -termp_sh_post(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - switch (node->type) { - case (MDOC_HEAD): - p->flags &= ~TERMP_BOLD; - newln(p); - break; - case (MDOC_BODY): - newln(p); - p->offset -= 4; - break; - default: - break; - } - return(1); -} - - -/* ARGSUSED */ -static int -termp_xr_pre(struct termp *p, const struct mdoc_meta *meta, - 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 */ -static int -termp_sh_pre(struct termp *p, const struct mdoc_meta *meta, - const struct mdoc_node *node) -{ - - switch (node->type) { - case (MDOC_HEAD): - vspace(p); - p->flags |= TERMP_BOLD; - break; - case (MDOC_BODY): - p->offset += 4; - break; - default: - break; - } - return(1); -} - - -/* 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; - default: - break; - } - return(1); -} - - -/* ARGSUSED */ -static int -termp_fl_pre(struct termp *p, const struct mdoc_meta *meta, - 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 ----------------- */ + /* Pre-processing. */ dochild = 1; @@ -811,30 +286,12 @@ termprint_r(struct termp *p, const struct mdoc_meta *meta, } else /* MDOC_TEXT == node->type */ word(p, node->data.text.string); - /* Children ---------------------- */ + /* 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) + if (dochild && node->child) termprint_r(p, meta, node->child); - /* Post-processing --------------- */ + /* Post-processing. */ if (MDOC_TEXT != node->type) { if (termacts[node->tok].post) @@ -842,7 +299,7 @@ termprint_r(struct termp *p, const struct mdoc_meta *meta, return; } - /* Siblings ---------------------- */ + /* Siblings. */ if (node->next) termprint_r(p, meta, node->next); @@ -988,10 +445,7 @@ termprint(const struct mdoc_node *node, { struct termp p; - if (ERR == setupterm(NULL, STDOUT_FILENO, NULL)) - return(0); - - p.maxrmargin = columns < 60 ? 60 : (size_t)columns; + p.maxrmargin = 80; /* XXX */ p.rmargin = p.maxrmargin; p.maxcols = 1024; p.offset = p.col = 0; |