=================================================================== RCS file: /cvs/mandoc/term.c,v retrieving revision 1.37 retrieving revision 1.191 diff -u -p -r1.37 -r1.191 --- mandoc/term.c 2009/03/03 22:17:19 1.37 +++ mandoc/term.c 2011/05/15 22:29:50 1.191 @@ -1,1648 +1,685 @@ -/* $Id: term.c,v 1.37 2009/03/03 22:17:19 kristaps Exp $ */ +/* $Id: term.c,v 1.191 2011/05/15 22:29:50 kristaps Exp $ */ /* - * Copyright (c) 2009 Kristaps Dzonsons + * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2010, 2011 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the - * above copyright notice and this permission notice appear in all - * copies. + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE - * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + #include #include -#include +#include #include #include #include +#include "mandoc.h" +#include "out.h" #include "term.h" +#include "main.h" -/* - * Performs actions on nodes of the abstract syntax tree. Both pre- and - * post-fix operations are defined here. - */ +static void adjbuf(struct termp *p, int); +static void bufferc(struct termp *, char); +static void encode(struct termp *, const char *, size_t); -/* FIXME: macro arguments can be escaped. */ - -#define TTYPE_PROG 0 -#define TTYPE_CMD_FLAG 1 -#define TTYPE_CMD_ARG 2 -#define TTYPE_SECTION 3 -#define TTYPE_FUNC_DECL 4 -#define TTYPE_VAR_DECL 5 -#define TTYPE_FUNC_TYPE 6 -#define TTYPE_FUNC_NAME 7 -#define TTYPE_FUNC_ARG 8 -#define TTYPE_LINK 9 -#define TTYPE_SSECTION 10 -#define TTYPE_FILE 11 -#define TTYPE_EMPH 12 -#define TTYPE_CONFIG 13 -#define TTYPE_CMD 14 -#define TTYPE_INCLUDE 15 -#define TTYPE_SYMB 16 -#define TTYPE_SYMBOL 17 -#define TTYPE_DIAG 18 -#define TTYPE_NMAX 19 - -/* - * These define "styles" for element types, like command arguments or - * executable names. This is useful when multiple macros must decorate - * the same thing (like .Ex -std cmd and .Nm cmd). - */ - -/* TODO: abstract this into mdocterm.c. */ - -const int ttypes[TTYPE_NMAX] = { - TERMP_BOLD, /* TTYPE_PROG */ - TERMP_BOLD, /* TTYPE_CMD_FLAG */ - TERMP_UNDERLINE, /* TTYPE_CMD_ARG */ - TERMP_BOLD, /* TTYPE_SECTION */ - TERMP_BOLD, /* TTYPE_FUNC_DECL */ - TERMP_UNDERLINE, /* TTYPE_VAR_DECL */ - TERMP_UNDERLINE, /* TTYPE_FUNC_TYPE */ - TERMP_BOLD, /* TTYPE_FUNC_NAME */ - TERMP_UNDERLINE, /* TTYPE_FUNC_ARG */ - TERMP_UNDERLINE, /* TTYPE_LINK */ - TERMP_BOLD, /* TTYPE_SSECTION */ - TERMP_UNDERLINE, /* TTYPE_FILE */ - TERMP_UNDERLINE, /* TTYPE_EMPH */ - TERMP_BOLD, /* TTYPE_CONFIG */ - TERMP_BOLD, /* TTYPE_CMD */ - TERMP_BOLD, /* TTYPE_INCLUDE */ - TERMP_BOLD, /* TTYPE_SYMB */ - TERMP_BOLD, /* TTYPE_SYMBOL */ - TERMP_BOLD /* TTYPE_DIAG */ -}; - -static int arg_hasattr(int, size_t, - const struct mdoc_arg *); -static int arg_getattr(int, size_t, - const struct mdoc_arg *); -static size_t arg_offset(const struct mdoc_arg *); -static size_t arg_width(const struct mdoc_arg *); - -/* - * What follows describes prefix and postfix operations for the abstract - * syntax tree descent. - */ - -#define DECL_ARGS \ - struct termp *p, \ - struct termpair *pair, \ - const struct mdoc_meta *meta, \ - const struct mdoc_node *node - -#define DECL_PRE(name) \ -static int name##_pre(DECL_ARGS) -#define DECL_POST(name) \ -static void name##_post(DECL_ARGS) -#define DECL_PREPOST(name) \ -DECL_PRE(name); \ -DECL_POST(name); - -DECL_PREPOST(termp__t); -DECL_PREPOST(termp_aq); -DECL_PREPOST(termp_bd); -DECL_PREPOST(termp_bq); -DECL_PREPOST(termp_d1); -DECL_PREPOST(termp_dq); -DECL_PREPOST(termp_fd); -DECL_PREPOST(termp_fn); -DECL_PREPOST(termp_fo); -DECL_PREPOST(termp_ft); -DECL_PREPOST(termp_in); -DECL_PREPOST(termp_it); -DECL_PREPOST(termp_op); -DECL_PREPOST(termp_pf); -DECL_PREPOST(termp_pq); -DECL_PREPOST(termp_qq); -DECL_PREPOST(termp_sh); -DECL_PREPOST(termp_ss); -DECL_PREPOST(termp_sq); -DECL_PREPOST(termp_vt); - -DECL_PRE(termp_ar); -DECL_PRE(termp_at); -DECL_PRE(termp_bf); -DECL_PRE(termp_bsx); -DECL_PRE(termp_bt); -DECL_PRE(termp_cd); -DECL_PRE(termp_cm); -DECL_PRE(termp_em); -DECL_PRE(termp_ex); -DECL_PRE(termp_fa); -DECL_PRE(termp_fl); -DECL_PRE(termp_fx); -DECL_PRE(termp_ic); -DECL_PRE(termp_ms); -DECL_PRE(termp_nd); -DECL_PRE(termp_nm); -DECL_PRE(termp_ns); -DECL_PRE(termp_nx); -DECL_PRE(termp_ox); -DECL_PRE(termp_pa); -DECL_PRE(termp_pp); -DECL_PRE(termp_rs); -DECL_PRE(termp_rv); -DECL_PRE(termp_sm); -DECL_PRE(termp_st); -DECL_PRE(termp_sx); -DECL_PRE(termp_sy); -DECL_PRE(termp_ud); -DECL_PRE(termp_ux); -DECL_PRE(termp_va); -DECL_PRE(termp_xr); - -DECL_POST(termp___); -DECL_POST(termp_bl); -DECL_POST(termp_bx); - -const struct termact __termacts[MDOC_MAX] = { - { NULL, NULL }, /* \" */ - { NULL, NULL }, /* Dd */ - { NULL, NULL }, /* Dt */ - { NULL, NULL }, /* Os */ - { termp_sh_pre, termp_sh_post }, /* Sh */ - { termp_ss_pre, termp_ss_post }, /* Ss */ - { termp_pp_pre, NULL }, /* Pp */ - { termp_d1_pre, termp_d1_post }, /* D1 */ - { termp_d1_pre, termp_d1_post }, /* Dl */ - { termp_bd_pre, termp_bd_post }, /* 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_ar_pre, NULL }, /* Ar */ - { termp_cd_pre, NULL }, /* Cd */ - { termp_cm_pre, NULL }, /* Cm */ - { NULL, NULL }, /* Dv */ - { NULL, NULL }, /* Er */ - { NULL, NULL }, /* Ev */ - { termp_ex_pre, NULL }, /* Ex */ - { termp_fa_pre, NULL }, /* Fa */ - { termp_fd_pre, termp_fd_post }, /* Fd */ - { termp_fl_pre, NULL }, /* Fl */ - { termp_fn_pre, termp_fn_post }, /* Fn */ - { termp_ft_pre, termp_ft_post }, /* Ft */ - { termp_ic_pre, NULL }, /* Ic */ - { termp_in_pre, termp_in_post }, /* In */ - { NULL, NULL }, /* Li */ - { termp_nd_pre, NULL }, /* Nd */ - { termp_nm_pre, NULL }, /* Nm */ - { termp_op_pre, termp_op_post }, /* Op */ - { NULL, NULL }, /* Ot */ - { termp_pa_pre, NULL }, /* Pa */ - { termp_rv_pre, NULL }, /* Rv */ - { termp_st_pre, NULL }, /* St */ - { termp_va_pre, NULL }, /* Va */ - { termp_vt_pre, termp_vt_post }, /* Vt */ - { termp_xr_pre, NULL }, /* Xr */ - { NULL, termp____post }, /* %A */ - { NULL, termp____post }, /* %B */ - { NULL, termp____post }, /* %D */ - { NULL, termp____post }, /* %I */ - { NULL, termp____post }, /* %J */ - { NULL, termp____post }, /* %N */ - { NULL, termp____post }, /* %O */ - { NULL, termp____post }, /* %P */ - { NULL, termp____post }, /* %R */ - { termp__t_pre, termp__t_post }, /* %T */ - { NULL, termp____post }, /* %V */ - { NULL, NULL }, /* Ac */ - { termp_aq_pre, termp_aq_post }, /* Ao */ - { termp_aq_pre, termp_aq_post }, /* Aq */ - { termp_at_pre, NULL }, /* At */ - { NULL, NULL }, /* Bc */ - { termp_bf_pre, NULL }, /* Bf */ - { termp_bq_pre, termp_bq_post }, /* Bo */ - { termp_bq_pre, termp_bq_post }, /* Bq */ - { termp_bsx_pre, NULL }, /* Bsx */ - { NULL, termp_bx_post }, /* Bx */ - { NULL, NULL }, /* Db */ - { NULL, NULL }, /* Dc */ - { termp_dq_pre, termp_dq_post }, /* Do */ - { termp_dq_pre, termp_dq_post }, /* Dq */ - { NULL, NULL }, /* Ec */ - { NULL, NULL }, /* Ef */ - { termp_em_pre, NULL }, /* Em */ - { NULL, NULL }, /* Eo */ - { termp_fx_pre, NULL }, /* Fx */ - { termp_ms_pre, NULL }, /* Ms */ - { NULL, NULL }, /* No */ - { termp_ns_pre, NULL }, /* Ns */ - { termp_nx_pre, NULL }, /* Nx */ - { termp_ox_pre, NULL }, /* Ox */ - { NULL, NULL }, /* Pc */ - { termp_pf_pre, termp_pf_post }, /* Pf */ - { termp_pq_pre, termp_pq_post }, /* Po */ - { termp_pq_pre, termp_pq_post }, /* Pq */ - { NULL, NULL }, /* Qc */ - { termp_sq_pre, termp_sq_post }, /* Ql */ - { termp_qq_pre, termp_qq_post }, /* Qo */ - { termp_qq_pre, termp_qq_post }, /* Qq */ - { NULL, NULL }, /* Re */ - { termp_rs_pre, NULL }, /* Rs */ - { NULL, NULL }, /* Sc */ - { termp_sq_pre, termp_sq_post }, /* So */ - { termp_sq_pre, termp_sq_post }, /* Sq */ - { termp_sm_pre, NULL }, /* Sm */ - { termp_sx_pre, NULL }, /* Sx */ - { termp_sy_pre, NULL }, /* Sy */ - { NULL, NULL }, /* Tn */ - { termp_ux_pre, NULL }, /* Ux */ - { NULL, NULL }, /* Xc */ - { NULL, NULL }, /* Xo */ - { termp_fo_pre, termp_fo_post }, /* Fo */ - { NULL, NULL }, /* Fc */ - { termp_op_pre, termp_op_post }, /* Oo */ - { NULL, NULL }, /* Oc */ - { NULL, NULL }, /* Bk */ - { NULL, NULL }, /* Ek */ - { termp_bt_pre, NULL }, /* Bt */ - { NULL, NULL }, /* Hf */ - { NULL, NULL }, /* Fr */ - { termp_ud_pre, NULL }, /* Ud */ -}; - -const struct termact *termacts = __termacts; - - -static size_t -arg_width(const struct mdoc_arg *arg) +void +term_free(struct termp *p) { - size_t v; - int i, len; - assert(*arg->value); - if (0 == strcmp(*arg->value, "indent")) - return(INDENT); - if (0 == strcmp(*arg->value, "indent-two")) - return(INDENT * 2); + if (p->buf) + free(p->buf); + if (p->symtab) + mchars_free(p->symtab); - len = (int)strlen(*arg->value); - assert(len > 0); - - for (i = 0; i < len - 1; i++) - if ( ! isdigit((int)(*arg->value)[i])) - break; - - if (i == len - 1) { - if ('n' == (*arg->value)[len - 1]) { - v = (size_t)atoi(*arg->value); - return(v); - } - - } - return(strlen(*arg->value) + 1); + free(p); } -static size_t -arg_offset(const struct mdoc_arg *arg) +void +term_begin(struct termp *p, term_margin head, + term_margin foot, const void *arg) { - /* TODO */ - assert(*arg->value); - if (0 == strcmp(*arg->value, "indent")) - return(INDENT); - if (0 == strcmp(*arg->value, "indent-two")) - return(INDENT * 2); - return(strlen(*arg->value)); + p->headf = head; + p->footf = foot; + p->argf = arg; + (*p->begin)(p); } -static int -arg_hasattr(int arg, size_t argc, const struct mdoc_arg *argv) +void +term_end(struct termp *p) { - return(-1 != arg_getattr(arg, argc, argv)); + (*p->end)(p); } -static int -arg_getattr(int arg, size_t argc, const struct mdoc_arg *argv) +struct termp * +term_alloc(enum termenc enc) { - int i; + struct termp *p; - for (i = 0; i < (int)argc; i++) - if (argv[i].arg == arg) - return(i); - return(-1); + p = mandoc_calloc(1, sizeof(struct termp)); + p->enc = enc; + return(p); } -/* ARGSUSED */ -static int -termp_dq_pre(DECL_ARGS) +/* + * Flush a line of text. A "line" is loosely defined as being something + * that should be followed by a newline, regardless of whether it's + * broken apart by newlines getting there. A line can also be a + * fragment of a columnar list (`Bl -tag' or `Bl -column'), which does + * not have a trailing newline. + * + * The following flags may be specified: + * + * - TERMP_NOLPAD: when beginning to write the line, don't left-pad the + * offset value. This is useful when doing columnar lists where the + * prior column has right-padded. + * + * - TERMP_NOBREAK: this is the most important and is used when making + * columns. In short: don't print a newline and instead pad to the + * right margin. Used in conjunction with TERMP_NOLPAD. + * + * - TERMP_TWOSPACE: when padding, make sure there are at least two + * space characters of padding. Otherwise, rather break the line. + * + * - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and + * the line is overrun, and don't pad-right if it's underrun. + * + * - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when + * overruning, instead save the position and continue at that point + * when the next invocation. + * + * In-line line breaking: + * + * If TERMP_NOBREAK is specified and the line overruns the right + * margin, it will break and pad-right to the right margin after + * writing. If maxrmargin is violated, it will break and continue + * writing from the right-margin, which will lead to the above scenario + * upon exit. Otherwise, the line will break at the right margin. + */ +void +term_flushln(struct termp *p) { + int i; /* current input position in p->buf */ + size_t vis; /* current visual position on output */ + size_t vbl; /* number of blanks to prepend to output */ + size_t vend; /* end of word visual position on output */ + size_t bp; /* visual right border position */ + size_t dv; /* temporary for visual pos calculations */ + int j; /* temporary loop index for p->buf */ + int jhy; /* last hyph before overflow w/r/t j */ + size_t maxvis; /* output position of visible boundary */ + size_t mmax; /* used in calculating bp */ - if (MDOC_BODY != node->type) - return(1); + /* + * First, establish the maximum columns of "visible" content. + * This is usually the difference between the right-margin and + * an indentation, but can be, for tagged lists or columns, a + * small set of values. + */ + assert (p->rmargin >= p->offset); + dv = p->rmargin - p->offset; + maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; + dv = p->maxrmargin - p->offset; + mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; - word(p, "``"); - p->flags |= TERMP_NOSPACE; - return(1); -} + bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; + /* + * Indent the first line of a paragraph. + */ + vbl = p->flags & TERMP_NOLPAD ? (size_t)0 : p->offset; -/* ARGSUSED */ -static void -termp_dq_post(DECL_ARGS) -{ + vis = vend = 0; + i = 0; - if (MDOC_BODY != node->type) - return; + while (i < p->col) { + /* + * Handle literal tab characters: collapse all + * subsequent tabs into a single huge set of spaces. + */ + while (i < p->col && '\t' == p->buf[i]) { + vend = (vis / p->tabwidth + 1) * p->tabwidth; + vbl += vend - vis; + vis = vend; + i++; + } - p->flags |= TERMP_NOSPACE; - word(p, "''"); -} + /* + * Count up visible word characters. Control sequences + * (starting with the CSI) aren't counted. A space + * generates a non-printing word, which is valid (the + * space is printed according to regular spacing rules). + */ + for (j = i, jhy = 0; j < p->col; j++) { + if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) + break; -/* ARGSUSED */ -static int -termp_it_pre(DECL_ARGS) -{ - const struct mdoc_node *n, *it; - const struct mdoc_block *bl; - char buf[7], *tp; - int i, type; - size_t width, offset; + /* Back over the the last printed character. */ + if (8 == p->buf[j]) { + assert(j); + vend -= (*p->width)(p, p->buf[j - 1]); + continue; + } - switch (node->type) { - case (MDOC_BODY): - /* FALLTHROUGH */ - case (MDOC_HEAD): - it = node->parent; - break; - case (MDOC_BLOCK): - it = node; - break; - default: - return(1); - } + /* Regular word. */ + /* Break at the hyphen point if we overrun. */ + if (vend > vis && vend < bp && + ASCII_HYPH == p->buf[j]) + jhy = j; - n = it->parent->parent; - bl = &n->data.block; + vend += (*p->width)(p, p->buf[j]); + } - if (MDOC_BLOCK == node->type) { - newln(p); - if ( ! arg_hasattr(MDOC_Compact, bl->argc, bl->argv)) - if (node->prev || n->prev) - vspace(p); - return(1); - } + /* + * Find out whether we would exceed the right margin. + * If so, break to the next line. + */ + if (vend > bp && 0 == jhy && vis > 0) { + vend -= vis; + (*p->endline)(p); + if (TERMP_NOBREAK & p->flags) { + p->viscol = p->rmargin; + (*p->advance)(p, p->rmargin); + vend += p->rmargin - p->offset; + } else { + p->viscol = 0; + vbl = p->offset; + } - /* Get our list type. */ + /* Remove the p->overstep width. */ - for (type = -1, i = 0; i < (int)bl->argc; i++) - switch (bl->argv[i].arg) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - /* FALLTHROUGH */ - case (MDOC_Tag): - /* FALLTHROUGH */ - case (MDOC_Inset): - /* FALLTHROUGH */ - case (MDOC_Diag): - /* FALLTHROUGH */ - case (MDOC_Ohang): - type = bl->argv[i].arg; - i = (int)bl->argc; - break; - default: - errx(1, "list type not supported"); - /* NOTREACHED */ + bp += (size_t)p->overstep; + p->overstep = 0; } - assert(-1 != type); + /* Write out the [remaining] word. */ + for ( ; i < p->col; i++) { + if (vend > bp && jhy > 0 && i > jhy) + break; + if ('\t' == p->buf[i]) + break; + if (' ' == p->buf[i]) { + j = i; + while (' ' == p->buf[i]) + i++; + dv = (size_t)(i - j) * (*p->width)(p, ' '); + vbl += dv; + vend += dv; + break; + } + if (ASCII_NBRSP == p->buf[i]) { + vbl += (*p->width)(p, ' '); + continue; + } - /* Save our existing (inherited) margin and offset. */ + /* + * Now we definitely know there will be + * printable characters to output, + * so write preceding white space now. + */ + if (vbl) { + (*p->advance)(p, vbl); + p->viscol += vbl; + vbl = 0; + } - pair->offset = p->offset; - pair->rmargin = p->rmargin; - - /* Get list width and offset. */ - - i = arg_getattr(MDOC_Width, bl->argc, bl->argv); - width = i >= 0 ? arg_width(&bl->argv[i]) : 0; - - i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); - offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0; - - /* Override the width. */ - - switch (type) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - width = width > 6 ? width : 6; - break; - case (MDOC_Tag): - if (0 == width) - errx(1, "need non-zero -width"); - break; - default: - break; + if (ASCII_HYPH == p->buf[i]) { + (*p->letter)(p, '-'); + p->viscol += (*p->width)(p, '-'); + } else { + (*p->letter)(p, p->buf[i]); + p->viscol += (*p->width)(p, p->buf[i]); + } + } + vis = vend; } - /* Word-wrap control. */ - - switch (type) { - case (MDOC_Diag): - if (MDOC_HEAD == node->type) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_DIAG]); - /* FALLTHROUGH */ - case (MDOC_Inset): - if (MDOC_HEAD == node->type) - p->flags |= TERMP_NOSPACE; - break; - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - /* FALLTHROUGH */ - case (MDOC_Tag): - p->flags |= TERMP_NOSPACE; - if (MDOC_HEAD == node->type) - p->flags |= TERMP_NOBREAK; - else if (MDOC_BODY == node->type) - p->flags |= TERMP_NOLPAD; - break; - default: - break; - } - - /* - * Get a token to use as the HEAD lead-in. If NULL, we use the - * HEAD child. + /* + * If there was trailing white space, it was not printed; + * so reset the cursor position accordingly. */ + vis -= vbl; - tp = NULL; + p->col = 0; + p->overstep = 0; - if (MDOC_HEAD == node->type) { - if (arg_hasattr(MDOC_Bullet, bl->argc, bl->argv)) - tp = "\\[bu]"; - if (arg_hasattr(MDOC_Dash, bl->argc, bl->argv)) - tp = "\\-"; - if (arg_hasattr(MDOC_Enum, bl->argc, bl->argv)) { - (pair->ppair->ppair->count)++; - (void)snprintf(buf, sizeof(buf), "%d.", - pair->ppair->ppair->count); - tp = buf; - } - if (arg_hasattr(MDOC_Hyphen, bl->argc, bl->argv)) - tp = "\\-"; + if ( ! (TERMP_NOBREAK & p->flags)) { + p->viscol = 0; + (*p->endline)(p); + return; } - /* Margin control. */ + if (TERMP_HANG & p->flags) { + /* We need one blank after the tag. */ + p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); - p->offset += offset; + /* + * Behave exactly the same way as groff: + * If we have overstepped the margin, temporarily move + * it to the right and flag the rest of the line to be + * shorter. + * If we landed right at the margin, be happy. + * If we are one step before the margin, temporarily + * move it one step LEFT and flag the rest of the line + * to be longer. + */ + if (p->overstep >= -1) { + assert((int)maxvis + p->overstep >= 0); + maxvis += (size_t)p->overstep; + } else + p->overstep = 0; - switch (type) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - /* FALLTHROUGH */ - case (MDOC_Tag): - if (MDOC_HEAD == node->type) - p->rmargin = p->offset + width; - else if (MDOC_BODY == node->type) - p->offset += width; - break; - default: - break; - } - - if (NULL == tp) - return(1); - - word(p, tp); - return(0); -} - - -/* ARGSUSED */ -static void -termp_it_post(DECL_ARGS) -{ - int type, i; - struct mdoc_block *bl; - - if (MDOC_BODY != node->type && MDOC_HEAD != node->type) + } else if (TERMP_DANGLE & p->flags) return; - assert(MDOC_BLOCK == node->parent->parent->parent->type); - assert(MDOC_Bl == node->parent->parent->parent->tok); - bl = &node->parent->parent->parent->data.block; - - for (type = -1, i = 0; i < (int)bl->argc; i++) - switch (bl->argv[i].arg) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - /* FALLTHROUGH */ - case (MDOC_Tag): - /* FALLTHROUGH */ - case (MDOC_Diag): - /* FALLTHROUGH */ - case (MDOC_Inset): - /* FALLTHROUGH */ - case (MDOC_Ohang): - type = bl->argv[i].arg; - i = (int)bl->argc; - break; - default: - errx(1, "list type not supported"); - /* NOTREACHED */ - } - - - switch (type) { - case (MDOC_Diag): - /* FALLTHROUGH */ - case (MDOC_Inset): - break; - default: - flushln(p); - break; + /* Right-pad. */ + if (maxvis > vis + + ((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { + p->viscol += maxvis - vis; + (*p->advance)(p, maxvis - vis); + vis += (maxvis - vis); + } else { /* ...or newline break. */ + (*p->endline)(p); + p->viscol = p->rmargin; + (*p->advance)(p, p->rmargin); } - - p->offset = pair->offset; - p->rmargin = pair->rmargin; - - switch (type) { - case (MDOC_Inset): - break; - default: - if (MDOC_HEAD == node->type) - p->flags &= ~TERMP_NOBREAK; - else if (MDOC_BODY == node->type) - p->flags &= ~TERMP_NOLPAD; - break; - } } -/* ARGSUSED */ -static int -termp_nm_pre(DECL_ARGS) +/* + * A newline only breaks an existing line; it won't assert vertical + * space. All data in the output buffer is flushed prior to the newline + * assertion. + */ +void +term_newln(struct termp *p) { - if (SEC_SYNOPSIS == node->sec) - newln(p); - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_PROG]); - if (NULL == node->child) - word(p, meta->name); - - return(1); -} - - -/* ARGSUSED */ -static int -termp_fl_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_FLAG]); - word(p, "\\-"); p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static int -termp_ar_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_ARG]); - if (NULL == node->child) { - word(p, "file"); - word(p, "..."); + if (0 == p->col && 0 == p->viscol) { + p->flags &= ~TERMP_NOLPAD; + return; } - return(1); + term_flushln(p); + p->flags &= ~TERMP_NOLPAD; } -/* ARGSUSED */ -static int -termp_ns_pre(DECL_ARGS) +/* + * 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) { - p->flags |= TERMP_NOSPACE; - return(1); + term_newln(p); + p->viscol = 0; + (*p->endline)(p); } - -/* ARGSUSED */ -static int -termp_pp_pre(DECL_ARGS) +void +term_fontlast(struct termp *p) { + enum termfont f; - vspace(p); - return(1); + f = p->fontl; + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; } -/* ARGSUSED */ -static int -termp_st_pre(DECL_ARGS) +void +term_fontrepl(struct termp *p, enum termfont f) { - const char *tp; - assert(1 == node->data.elem.argc); - - tp = mdoc_st2a(node->data.elem.argv[0].arg); - word(p, tp); - - return(1); + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; } -/* ARGSUSED */ -static int -termp_rs_pre(DECL_ARGS) +void +term_fontpush(struct termp *p, enum termfont f) { - if (MDOC_BLOCK == node->type && node->prev) - vspace(p); - return(1); + assert(p->fonti + 1 < 10); + p->fontl = p->fontq[p->fonti]; + p->fontq[++p->fonti] = f; } -/* ARGSUSED */ -static int -termp_rv_pre(DECL_ARGS) +const void * +term_fontq(struct termp *p) { - int i; - i = arg_getattr(MDOC_Std, node->data.elem.argc, - node->data.elem.argv); - assert(i >= 0); - - newln(p); - word(p, "The"); - - p->flags |= ttypes[TTYPE_FUNC_NAME]; - word(p, *node->data.elem.argv[i].value); - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; - - word(p, "() function returns the value 0 if successful;"); - word(p, "otherwise the value -1 is returned and the"); - word(p, "global variable"); - - p->flags |= ttypes[TTYPE_VAR_DECL]; - word(p, "errno"); - p->flags &= ~ttypes[TTYPE_VAR_DECL]; - - word(p, "is set to indicate the error."); - - return(1); + return(&p->fontq[p->fonti]); } -/* ARGSUSED */ -static int -termp_ex_pre(DECL_ARGS) +enum termfont +term_fonttop(struct termp *p) { - int i; - i = arg_getattr(MDOC_Std, node->data.elem.argc, - node->data.elem.argv); - assert(i >= 0); - - word(p, "The"); - p->flags |= ttypes[TTYPE_PROG]; - word(p, *node->data.elem.argv[i].value); - p->flags &= ~ttypes[TTYPE_PROG]; - word(p, "utility exits 0 on success, and >0 if an error occurs."); - - return(1); + return(p->fontq[p->fonti]); } -/* ARGSUSED */ -static int -termp_nd_pre(DECL_ARGS) +void +term_fontpopq(struct termp *p, const void *key) { - word(p, "\\-"); - return(1); + while (p->fonti >= 0 && key != &p->fontq[p->fonti]) + p->fonti--; + assert(p->fonti >= 0); } -/* ARGSUSED */ -static void -termp_bl_post(DECL_ARGS) +void +term_fontpop(struct termp *p) { - if (MDOC_BLOCK == node->type) - newln(p); + assert(p->fonti); + p->fonti--; } - -/* ARGSUSED */ -static void -termp_op_post(DECL_ARGS) +/* + * 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) { + const char *seq, *cp; + char c; + int sz; + size_t ssz; + enum mandoc_esc esc; - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - word(p, "\\(rB"); -} - - -/* ARGSUSED */ -static int -termp_xr_pre(DECL_ARGS) -{ - 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_vt_pre(DECL_ARGS) -{ - - /* FIXME: this can be "type name". */ - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_VAR_DECL]); - return(1); -} - - -/* ARGSUSED */ -static void -termp_vt_post(DECL_ARGS) -{ - - if (node->sec == SEC_SYNOPSIS) - vspace(p); -} - - -/* ARGSUSED */ -static int -termp_fd_pre(DECL_ARGS) -{ - - /* - * FIXME: this naming is bad. This value is used, in general, - * for the #include header or other preprocessor statement. - */ - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_DECL]); - return(1); -} - - -/* ARGSUSED */ -static void -termp_fd_post(DECL_ARGS) -{ - - if (node->sec != SEC_SYNOPSIS) - return; - newln(p); - if (node->next && MDOC_Fd != node->next->tok) - vspace(p); -} - - -/* ARGSUSED */ -static int -termp_sh_pre(DECL_ARGS) -{ - - switch (node->type) { - case (MDOC_HEAD): - vspace(p); - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SECTION]); - break; - case (MDOC_BODY): - p->offset = INDENT; - break; - default: - break; + if ( ! (TERMP_NOSPACE & p->flags)) { + if ( ! (TERMP_KEEP & p->flags)) { + if (TERMP_PREKEEP & p->flags) + p->flags |= TERMP_KEEP; + bufferc(p, ' '); + if (TERMP_SENTENCE & p->flags) + bufferc(p, ' '); + } else + bufferc(p, ASCII_NBRSP); } - return(1); -} + if ( ! (p->flags & TERMP_NONOSPACE)) + p->flags &= ~TERMP_NOSPACE; + else + p->flags |= TERMP_NOSPACE; -/* ARGSUSED */ -static void -termp_sh_post(DECL_ARGS) -{ + p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); - switch (node->type) { - case (MDOC_HEAD): - newln(p); - break; - case (MDOC_BODY): - newln(p); - p->offset = 0; - break; - default: - break; - } -} + while ('\0' != *word) { + if ((ssz = strcspn(word, "\\")) > 0) + encode(p, word, ssz); + word += (int)ssz; + if ('\\' != *word) + continue; -/* ARGSUSED */ -static int -termp_op_pre(DECL_ARGS) -{ + word++; + esc = mandoc_escape(&word, &seq, &sz); + if (ESCAPE_ERROR == esc) + break; - switch (node->type) { - case (MDOC_BODY): - word(p, "\\(lB"); - p->flags |= TERMP_NOSPACE; - break; - default: - break; + switch (esc) { + case (ESCAPE_NUMBERED): + if ('\0' != (c = mchars_num2char(seq, sz))) + encode(p, &c, 1); + break; + case (ESCAPE_PREDEF): + cp = mchars_res2str(p->symtab, seq, sz, &ssz); + if (NULL != cp) + encode(p, cp, ssz); + break; + case (ESCAPE_SPECIAL): + cp = mchars_spec2str(p->symtab, seq, sz, &ssz); + if (NULL != cp) + encode(p, cp, ssz); + else if (1 == ssz) + encode(p, seq, sz); + break; + case (ESCAPE_FONTBOLD): + term_fontrepl(p, TERMFONT_BOLD); + break; + case (ESCAPE_FONTITALIC): + term_fontrepl(p, TERMFONT_UNDER); + break; + case (ESCAPE_FONTROMAN): + term_fontrepl(p, TERMFONT_NONE); + break; + case (ESCAPE_FONTPREV): + term_fontlast(p); + break; + case (ESCAPE_NOSPACE): + if ('\0' == *word) + p->flags |= TERMP_NOSPACE; + break; + default: + break; + } } - return(1); } - -/* ARGSUSED */ -static int -termp_bt_pre(DECL_ARGS) -{ - - word(p, "is currently in beta test."); - return(1); -} - - -/* ARGSUSED */ -static int -termp_ud_pre(DECL_ARGS) -{ - - word(p, "currently under development."); - return(1); -} - - -/* ARGSUSED */ -static int -termp_d1_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - newln(p); - p->offset += (pair->offset = INDENT); - return(1); -} - - -/* ARGSUSED */ static void -termp_d1_post(DECL_ARGS) +adjbuf(struct termp *p, int sz) { - if (MDOC_BODY != node->type) - return; - newln(p); - p->offset -= pair->offset; -} + if (0 == p->maxcols) + p->maxcols = 1024; + while (sz >= p->maxcols) + p->maxcols <<= 2; - -/* ARGSUSED */ -static int -termp_aq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - word(p, "<"); - p->flags |= TERMP_NOSPACE; - return(1); + p->buf = mandoc_realloc + (p->buf, sizeof(int) * (size_t)p->maxcols); } - -/* ARGSUSED */ static void -termp_aq_post(DECL_ARGS) +bufferc(struct termp *p, char c) { - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - word(p, ">"); -} + if (p->col + 1 >= p->maxcols) + adjbuf(p, p->col + 1); - -/* ARGSUSED */ -static int -termp_ft_pre(DECL_ARGS) -{ - - if (SEC_SYNOPSIS == node->sec) - if (node->prev && MDOC_Fo == node->prev->tok) - vspace(p); - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_TYPE]); - return(1); + p->buf[p->col++] = c; } - -/* ARGSUSED */ static void -termp_ft_post(DECL_ARGS) +encode(struct termp *p, const char *word, size_t sz) { + enum termfont f; + int i, len; - if (SEC_SYNOPSIS == node->sec) - newln(p); -} + /* LINTED */ + len = sz; + /* + * Encode and buffer a string of characters. If the current + * font mode is unset, buffer directly, else encode then buffer + * character by character. + */ -/* ARGSUSED */ -static int -termp_fn_pre(DECL_ARGS) -{ - const struct mdoc_node *n; + if (TERMFONT_NONE == (f = term_fonttop(p))) { + if (p->col + len >= p->maxcols) + adjbuf(p, p->col + len); + for (i = 0; i < len; i++) + p->buf[p->col++] = word[i]; + return; + } - assert(node->child); - assert(MDOC_TEXT == node->child->type); + /* Pre-buffer, assuming worst-case. */ - /* FIXME: can be "type funcname" "type varname"... */ + if (p->col + 1 + (len * 3) >= p->maxcols) + adjbuf(p, p->col + 1 + (len * 3)); - p->flags |= ttypes[TTYPE_FUNC_NAME]; - word(p, node->child->data.text.string); - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; + for (i = 0; i < len; i++) { + if ( ! isgraph((unsigned char)word[i])) { + p->buf[p->col++] = word[i]; + continue; + } - word(p, "("); + if (TERMFONT_UNDER == f) + p->buf[p->col++] = '_'; + else + p->buf[p->col++] = word[i]; - p->flags |= TERMP_NOSPACE; - for (n = node->child->next; n; n = n->next) { - assert(MDOC_TEXT == n->type); - p->flags |= ttypes[TTYPE_FUNC_ARG]; - word(p, n->data.text.string); - p->flags &= ~ttypes[TTYPE_FUNC_ARG]; - if (n->next) - word(p, ","); + p->buf[p->col++] = 8; + p->buf[p->col++] = word[i]; } - - word(p, ")"); - - if (SEC_SYNOPSIS == node->sec) - word(p, ";"); - - return(0); } - -/* ARGSUSED */ -static void -termp_fn_post(DECL_ARGS) +size_t +term_len(const struct termp *p, size_t sz) { - if (node->sec == SEC_SYNOPSIS && node->next) - vspace(p); - + return((*p->width)(p, ' ') * sz); } -/* ARGSUSED */ -static int -termp_sx_pre(DECL_ARGS) +size_t +term_strlen(const struct termp *p, const char *cp) { + size_t sz, rsz, i; + int ssz, c; + const char *seq, *rhs; + static const char rej[] = { '\\', ASCII_HYPH, ASCII_NBRSP, '\0' }; - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_LINK]); - return(1); -} + /* + * Account for escaped sequences within string length + * calculations. This follows the logic in term_word() as we + * must calculate the width of produced strings. + */ + sz = 0; + while ('\0' != *cp) { + rsz = strcspn(cp, rej); + for (i = 0; i < rsz; i++) + sz += (*p->width)(p, *cp++); -/* ARGSUSED */ -static int -termp_fa_pre(DECL_ARGS) -{ - struct mdoc_node *n; + switch (*cp) { + case ('\\'): + cp++; + rhs = NULL; + switch (mandoc_escape(&cp, &seq, &ssz)) { + case (ESCAPE_ERROR): + return(sz); + case (ESCAPE_NUMBERED): + c = mchars_num2char(seq, ssz); + if ('\0' != c) + sz += (*p->width)(p, c); + break; + case (ESCAPE_PREDEF): + rhs = mchars_res2str + (p->symtab, seq, ssz, &rsz); + break; + case (ESCAPE_SPECIAL): + rhs = mchars_spec2str + (p->symtab, seq, ssz, &rsz); - if (node->parent->tok != MDOC_Fo) { - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_ARG]); - return(1); - } + if (ssz != 1 || rhs) + break; - for (n = node->child; n; n = n->next) { - assert(MDOC_TEXT == n->type); + rhs = seq; + rsz = ssz; + break; + default: + break; + } - p->flags |= ttypes[TTYPE_FUNC_ARG]; - word(p, n->data.text.string); - p->flags &= ~ttypes[TTYPE_FUNC_ARG]; + if (NULL == rhs) + break; - if (n->next) - word(p, ","); - } - - if (node->next && node->next->tok == MDOC_Fa) - word(p, ","); - - return(0); -} - - -/* ARGSUSED */ -static int -termp_va_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_VAR_DECL]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_bd_pre(DECL_ARGS) -{ - const struct mdoc_block *bl; - const struct mdoc_node *n; - int i, type; - - if (MDOC_BLOCK == node->type) { - if (node->prev) - vspace(p); - return(1); - } else if (MDOC_BODY != node->type) - return(1); - - pair->offset = p->offset; - bl = &node->parent->data.block; - - for (type = -1, i = 0; i < (int)bl->argc; i++) { - switch (bl->argv[i].arg) { - case (MDOC_Ragged): - /* FALLTHROUGH */ - case (MDOC_Filled): - /* FALLTHROUGH */ - case (MDOC_Unfilled): - /* FALLTHROUGH */ - case (MDOC_Literal): - type = bl->argv[i].arg; - i = (int)bl->argc; + for (i = 0; i < rsz; i++) + sz += (*p->width)(p, *rhs++); break; + case (ASCII_NBRSP): + sz += (*p->width)(p, ' '); + cp++; + break; + case (ASCII_HYPH): + sz += (*p->width)(p, '-'); + cp++; + break; default: - errx(1, "display type not supported"); + break; } } - assert(-1 != type); - - i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); - if (-1 != i) { - assert(1 == bl->argv[i].sz); - p->offset += arg_offset(&bl->argv[i]); - } - - - switch (type) { - case (MDOC_Literal): - /* FALLTHROUGH */ - case (MDOC_Unfilled): - break; - default: - return(1); - } - - p->flags |= TERMP_LITERAL; - - for (n = node->child; n; n = n->next) { - if (MDOC_TEXT != n->type) { - warnx("non-text children not yet allowed"); - continue; - } - word(p, n->data.text.string); - flushln(p); - } - - return(0); + return(sz); } - /* ARGSUSED */ -static void -termp_bd_post(DECL_ARGS) +size_t +term_vspan(const struct termp *p, const struct roffsu *su) { + double r; - if (MDOC_BODY != node->type) - return; - - if ( ! (p->flags & TERMP_LITERAL)) - flushln(p); - - p->flags &= ~TERMP_LITERAL; - p->offset = pair->offset; -} - - -/* ARGSUSED */ -static int -termp_qq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - word(p, "\""); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_qq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - word(p, "\""); -} - - -/* ARGSUSED */ -static int -termp_bsx_pre(DECL_ARGS) -{ - - word(p, "BSDI BSD/OS"); - return(1); -} - - -/* ARGSUSED */ -static void -termp_bx_post(DECL_ARGS) -{ - - if (node->child) - p->flags |= TERMP_NOSPACE; - word(p, "BSD"); -} - - -/* ARGSUSED */ -static int -termp_ox_pre(DECL_ARGS) -{ - - word(p, "OpenBSD"); - return(1); -} - - -/* ARGSUSED */ -static int -termp_ux_pre(DECL_ARGS) -{ - - word(p, "UNIX"); - return(1); -} - - -/* ARGSUSED */ -static int -termp_fx_pre(DECL_ARGS) -{ - - word(p, "FreeBSD"); - return(1); -} - - -/* ARGSUSED */ -static int -termp_nx_pre(DECL_ARGS) -{ - - word(p, "NetBSD"); - return(1); -} - - -/* ARGSUSED */ -static int -termp_sq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - word(p, "`"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_sq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - word(p, "\'"); -} - - -/* ARGSUSED */ -static int -termp_pf_pre(DECL_ARGS) -{ - - p->flags |= TERMP_IGNDELIM; - return(1); -} - - -/* ARGSUSED */ -static void -termp_pf_post(DECL_ARGS) -{ - - p->flags &= ~TERMP_IGNDELIM; - p->flags |= TERMP_NOSPACE; -} - - -/* ARGSUSED */ -static int -termp_ss_pre(DECL_ARGS) -{ - - switch (node->type) { - case (MDOC_HEAD): - vspace(p); - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SSECTION]); - p->offset = INDENT / 2; + switch (su->unit) { + case (SCALE_CM): + r = su->scale * 2; break; - default: + case (SCALE_IN): + r = su->scale * 6; break; - } - - return(1); -} - - -/* ARGSUSED */ -static void -termp_ss_post(DECL_ARGS) -{ - - switch (node->type) { - case (MDOC_HEAD): - newln(p); - p->offset = INDENT; + 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; } -} - -/* ARGSUSED */ -static int -termp_pa_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FILE]); - return(1); + if (r < 0.0) + r = 0.0; + return(/* LINTED */(size_t) + r); } - -/* ARGSUSED */ -static int -termp_em_pre(DECL_ARGS) +size_t +term_hspan(const struct termp *p, const struct roffsu *su) { + double v; - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_cd_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CONFIG]); - newln(p); - return(1); -} - - -/* ARGSUSED */ -static int -termp_cm_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_FLAG]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_ic_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_in_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_INCLUDE]); - word(p, "#include"); - word(p, "<"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_in_post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - word(p, ">"); - - newln(p); - if (SEC_SYNOPSIS != node->sec) - return; - if (node->next && MDOC_In != node->next->tok) - vspace(p); -} - - -/* ARGSUSED */ -static int -termp_at_pre(DECL_ARGS) -{ - enum mdoc_att c; - - c = ATT_DEFAULT; - if (node->child) { - assert(MDOC_TEXT == node->child->type); - c = mdoc_atoatt(node->child->data.text.string); - } - - word(p, mdoc_att2a(c)); - return(0); -} - - -/* ARGSUSED */ -static int -termp_bq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - word(p, "["); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_bq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - word(p, "]"); -} - - -/* ARGSUSED */ -static int -termp_pq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - word(p, "\\&("); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_pq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - word(p, ")"); -} - - -/* ARGSUSED */ -static int -termp_fo_pre(DECL_ARGS) -{ - const struct mdoc_node *n; - - if (MDOC_BODY == node->type) { - word(p, "("); - p->flags |= TERMP_NOSPACE; - return(1); - } else if (MDOC_HEAD != node->type) - return(1); - - /* XXX - groff shows only first parameter */ - - p->flags |= ttypes[TTYPE_FUNC_NAME]; - for (n = node->child; n; n = n->next) { - assert(MDOC_TEXT == n->type); - word(p, n->data.text.string); - } - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; - - return(0); -} - - -/* ARGSUSED */ -static void -termp_fo_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - word(p, ")"); - word(p, ";"); - newln(p); -} - - -/* ARGSUSED */ -static int -termp_bf_pre(DECL_ARGS) -{ - const struct mdoc_node *n; - const struct mdoc_block *b; - - /* XXX - we skip over possible trailing HEAD tokens. */ - - if (MDOC_HEAD == node->type) - return(0); - else if (MDOC_BLOCK != node->type) - return(1); - - b = &node->data.block; - - if (NULL == (n = b->head->child)) { - if (arg_hasattr(MDOC_Emphasis, b->argc, b->argv)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - else if (arg_hasattr(MDOC_Symbolic, b->argc, b->argv)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMB]); - - return(1); - } - - assert(MDOC_TEXT == n->type); - - if (0 == strcmp("Em", n->data.text.string)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - else if (0 == strcmp("Sy", n->data.text.string)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - - return(1); -} - - -/* ARGSUSED */ -static int -termp_sy_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMB]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_ms_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMBOL]); - return(1); -} - - - -/* ARGSUSED */ -static int -termp_sm_pre(DECL_ARGS) -{ - -#if notyet - assert(node->child); - if (0 == strcmp("off", node->child->data.text.string)) { - p->flags &= ~TERMP_NONOSPACE; - p->flags &= ~TERMP_NOSPACE; - } else { - p->flags |= TERMP_NONOSPACE; - p->flags |= TERMP_NOSPACE; - } -#endif - - return(0); -} - - -/* ARGSUSED */ -static int -termp__t_pre(DECL_ARGS) -{ - - word(p, "\""); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp__t_post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - word(p, "\""); - word(p, node->next ? "," : "."); -} - - -/* ARGSUSED */ -static void -termp____post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - word(p, node->next ? "," : "."); + v = ((*p->hspan)(p, su)); + if (v < 0.0) + v = 0.0; + return((size_t) /* LINTED */ + v); }