=================================================================== RCS file: /cvs/mandoc/term.c,v retrieving revision 1.69 retrieving revision 1.162 diff -u -p -r1.69 -r1.162 --- mandoc/term.c 2009/03/23 09:42:43 1.69 +++ mandoc/term.c 2010/07/17 12:01:43 1.162 @@ -1,1926 +1,703 @@ -/* $Id: term.c,v 1.69 2009/03/23 09:42:43 kristaps Exp $ */ +/* $Id: term.c,v 1.162 2010/07/17 12:01:43 kristaps Exp $ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons + * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2010 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 "chars.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 spec(struct termp *, const char *, size_t); +static void res(struct termp *, const char *, size_t); +static void buffera(struct termp *, const char *, size_t); +static void bufferc(struct termp *, char); +static void adjbuf(struct termp *p, size_t); +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_LINK_ANCHOR 19 -#define TTYPE_LINK_TEXT 20 -#define TTYPE_REF_JOURNAL 21 -#define TTYPE_LIST 22 -#define TTYPE_NMAX 23 - -/* - * 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_UNDER, /* TTYPE_CMD_ARG */ - TERMP_BOLD, /* TTYPE_SECTION */ - TERMP_BOLD, /* TTYPE_FUNC_DECL */ - TERMP_UNDER, /* TTYPE_VAR_DECL */ - TERMP_UNDER, /* TTYPE_FUNC_TYPE */ - TERMP_BOLD, /* TTYPE_FUNC_NAME */ - TERMP_UNDER, /* TTYPE_FUNC_ARG */ - TERMP_UNDER, /* TTYPE_LINK */ - TERMP_BOLD, /* TTYPE_SSECTION */ - TERMP_UNDER, /* TTYPE_FILE */ - TERMP_UNDER, /* 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 */ - TERMP_UNDER, /* TTYPE_LINK_ANCHOR */ - TERMP_BOLD, /* TTYPE_LINK_TEXT */ - TERMP_UNDER, /* TTYPE_REF_JOURNAL */ - TERMP_BOLD /* TTYPE_LIST */ -}; - -static int arg_hasattr(int, const struct mdoc_node *); -static int arg_getattrs(const int *, int *, size_t, - const struct mdoc_node *); -static int arg_getattr(int, const struct mdoc_node *); -static size_t arg_offset(const struct mdoc_argv *); -static size_t arg_width(const struct mdoc_argv *, int); -static int arg_listtype(const struct mdoc_node *); -static int fmt_block_vspace(struct termp *, - const struct mdoc_node *, - const struct mdoc_node *); - -/* - * 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_brq); -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_lb); -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__j); -DECL_PRE(termp_ap); -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_dx); -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_lk); -DECL_PRE(termp_ms); -DECL_PRE(termp_mt); -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 */ - { termp__j_pre, 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 */ - { termp_lb_pre, termp_lb_post }, /* Lb */ - { termp_ap_pre, NULL }, /* Lb */ - { termp_pp_pre, NULL }, /* Pp */ - { termp_lk_pre, NULL }, /* Lk */ - { termp_mt_pre, NULL }, /* Mt */ - { termp_brq_pre, termp_brq_post }, /* Brq */ - { termp_brq_pre, termp_brq_post }, /* Bro */ - { NULL, NULL }, /* Brc */ - { NULL, NULL }, /* %C */ - { NULL, NULL }, /* Es */ - { NULL, NULL }, /* En */ - { termp_dx_pre, NULL }, /* Dx */ - { NULL, NULL }, /* %Q */ -}; - -const struct termact *termacts = __termacts; - - -static size_t -arg_width(const struct mdoc_argv *arg, int pos) +void +term_free(struct termp *p) { - size_t v; - int i, len; - assert(pos < (int)arg->sz && pos >= 0); - assert(arg->value[pos]); - if (0 == strcmp(arg->value[pos], "indent")) - return(INDENT); - if (0 == strcmp(arg->value[pos], "indent-two")) - return(INDENT * 2); + if (p->buf) + free(p->buf); + if (p->symtab) + chars_free(p->symtab); - if (0 == (len = (int)strlen(arg->value[pos]))) - return(0); - - for (i = 0; i < len - 1; i++) - if ( ! isdigit((u_char)arg->value[pos][i])) - break; - - if (i == len - 1) { - if ('n' == arg->value[pos][len - 1]) { - v = (size_t)atoi(arg->value[pos]); - return(v); - } - - } - return(strlen(arg->value[pos]) + 1); + free(p); } -static int -arg_listtype(const struct mdoc_node *n) +void +term_begin(struct termp *p, term_margin head, + term_margin foot, const void *arg) { - int i, len; - assert(MDOC_BLOCK == n->type); - - len = (int)(n->args ? n->args->argc : 0); - - for (i = 0; i < len; i++) - switch (n->args->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_Item): - /* FALLTHROUGH */ - case (MDOC_Column): - /* FALLTHROUGH */ - case (MDOC_Ohang): - return(n->args->argv[i].arg); - default: - break; - } - - errx(1, "list type not supported"); - /* NOTREACHED */ + p->headf = head; + p->footf = foot; + p->argf = arg; + (*p->begin)(p); } -static size_t -arg_offset(const struct mdoc_argv *arg) +void +term_end(struct termp *p) { - /* 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->end)(p); } -static int -arg_hasattr(int arg, const struct mdoc_node *n) +struct termp * +term_alloc(enum termenc enc) { + struct termp *p; - return(-1 != arg_getattr(arg, n)); -} - - -static int -arg_getattr(int v, const struct mdoc_node *n) -{ - int val; - - return(arg_getattrs(&v, &val, 1, n) ? val : -1); -} - - -static int -arg_getattrs(const int *keys, int *vals, - size_t sz, const struct mdoc_node *n) -{ - int i, j, k; - - if (NULL == n->args) - return(0); - - for (k = i = 0; i < (int)n->args->argc; i++) - for (j = 0; j < (int)sz; j++) - if (n->args->argv[i].arg == keys[j]) { - vals[j] = i; - k++; - } - return(k); -} - - -/* ARGSUSED */ -static int -fmt_block_vspace(struct termp *p, - const struct mdoc_node *bl, - const struct mdoc_node *node) -{ - const struct mdoc_node *n; - - term_newln(p); - - if (arg_hasattr(MDOC_Compact, bl)) - return(1); - - for (n = node; n; n = n->parent) { - if (MDOC_BLOCK != n->type) - continue; - if (MDOC_Ss == n->tok) - break; - if (MDOC_Sh == n->tok) - break; - if (NULL == n->prev) - continue; - term_vspace(p); - break; + p = calloc(1, sizeof(struct termp)); + if (NULL == p) { + perror(NULL); + exit(EXIT_FAILURE); } - return(1); + 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 */ + 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); - - term_word(p, "\\(lq"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_dq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(rq"); -} - - -/* ARGSUSED */ -static int -termp_it_pre(DECL_ARGS) -{ - const struct mdoc_node *bl, *n; - char buf[7]; - int i, type, keys[3], vals[3]; - size_t width, offset; - - if (MDOC_BLOCK == node->type) - return(fmt_block_vspace(p, node->parent->parent, node)); - - bl = node->parent->parent->parent; - - /* Save parent attributes. */ - - pair->offset = p->offset; - pair->rmargin = p->rmargin; - pair->flag = p->flags; - - /* Get list width and offset. */ - - keys[0] = MDOC_Width; - keys[1] = MDOC_Offset; - keys[2] = MDOC_Column; - - vals[0] = vals[1] = vals[2] = -1; - - width = offset = 0; - - (void)arg_getattrs(keys, vals, 3, bl); - - type = arg_listtype(bl); - - /* Calculate real width and offset. */ - - switch (type) { - case (MDOC_Column): - if (MDOC_BODY == node->type) - break; - for (i = 0, n = node->prev; n; n = n->prev, i++) - offset += arg_width - (&bl->args->argv[vals[2]], i); - assert(i < (int)bl->args->argv[vals[2]].sz); - width = arg_width(&bl->args->argv[vals[2]], i); - if (vals[1] >= 0) - offset += arg_offset(&bl->args->argv[vals[1]]); - break; - default: - if (vals[0] >= 0) - width = arg_width(&bl->args->argv[vals[0]], 0); - if (vals[1] >= 0) - offset = arg_offset(&bl->args->argv[vals[1]]); - break; - } - - /* - * List-type can override the width in the case of fixed-head - * values (bullet, dash/hyphen, enum). Tags need a non-zero - * offset. + /* + * 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. */ - switch (type) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Enum): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - if (width < 4) - width = 4; - break; - case (MDOC_Tag): - if (0 == width) - width = 10; - break; - default: - break; - } + assert(p->offset < p->rmargin); - /* - * Whitespace control. Inset bodies need an initial space. - */ + maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ? + /* LINTED */ + 0 : p->rmargin - p->offset - p->overstep; + mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ? + /* LINTED */ + 0 : p->maxrmargin - p->offset - p->overstep; - switch (type) { - case (MDOC_Diag): - /* FALLTHROUGH */ - case (MDOC_Inset): - if (MDOC_BODY == node->type) - p->flags &= ~TERMP_NOSPACE; - else - p->flags |= TERMP_NOSPACE; - break; - default: - p->flags |= TERMP_NOSPACE; - break; - } + bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; /* - * Style flags. Diagnostic heads need TTYPE_DIAG. + * Indent the first line of a paragraph. */ + vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; - switch (type) { - case (MDOC_Diag): - if (MDOC_HEAD == node->type) - p->flags |= ttypes[TTYPE_DIAG]; - break; - default: - break; - } + vis = vend = i = 0; - /* - * Pad and break control. This is the tricker part. Lists with - * set right-margins for the head get TERMP_NOBREAK because, if - * they overrun the margin, they wrap to the new margin. - * Correspondingly, the body for these types don't left-pad, as - * the head will pad out to to the right. - */ - - 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->flags |= TERMP_NOBREAK; - else - p->flags |= TERMP_NOLPAD; - if (MDOC_HEAD == node->type && MDOC_Tag == type) - if (NULL == node->next || - NULL == node->next->child) - p->flags |= TERMP_NONOBREAK; - break; - case (MDOC_Column): - if (MDOC_HEAD == node->type) { - assert(node->next); - if (MDOC_BODY == node->next->type) - p->flags &= ~TERMP_NOBREAK; - else - p->flags |= TERMP_NOBREAK; - if (node->prev) - p->flags |= TERMP_NOLPAD; + while (i < (int)p->col) { + /* + * Handle literal tab characters: collapse all + * subsequent tabs into a single huge set of spaces. + */ + for (j = i; j < (int)p->col; j++) { + if ('\t' != p->buf[j]) + break; + vend = (vis / p->tabwidth + 1) * p->tabwidth; + vbl += vend - vis; + vis = vend; } - break; - case (MDOC_Diag): - if (MDOC_HEAD == node->type) - p->flags |= TERMP_NOBREAK; - break; - default: - break; - } - /* - * Margin control. Set-head-width lists have their right - * margins shortened. The body for these lists has the offset - * necessarily lengthened. Everybody gets the offset. - */ + /* + * 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). + */ - p->offset += offset; + /* LINTED */ + for (jhy = 0; j < (int)p->col; j++) { + if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) + break; - 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 - p->offset += width; - break; - case (MDOC_Column): - p->rmargin = p->offset + width; - break; - default: - break; - } + /* Back over the the last printed character. */ + if (8 == p->buf[j]) { + assert(j); + vend -= (*p->width)(p, p->buf[j - 1]); + continue; + } - /* - * The dash, hyphen, bullet and enum lists all have a special - * HEAD character. Print it now. - */ + /* Regular word. */ + /* Break at the hyphen point if we overrun. */ + if (vend > vis && vend < bp && + ASCII_HYPH == p->buf[j]) + jhy = j; - if (MDOC_HEAD == node->type) - switch (type) { - case (MDOC_Bullet): - term_word(p, "\\[bu]"); - break; - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - term_word(p, "\\-"); - break; - case (MDOC_Enum): - (pair->ppair->ppair->count)++; - (void)snprintf(buf, sizeof(buf), "%d.", - pair->ppair->ppair->count); - term_word(p, buf); - break; - default: - break; + vend += (*p->width)(p, p->buf[j]); } - /* - * If we're not going to process our children, indicate so here. - */ + /* + * 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; + } - switch (type) { - case (MDOC_Bullet): - /* FALLTHROUGH */ - case (MDOC_Item): - /* FALLTHROUGH */ - case (MDOC_Dash): - /* FALLTHROUGH */ - case (MDOC_Hyphen): - /* FALLTHROUGH */ - case (MDOC_Enum): - if (MDOC_HEAD == node->type) - return(0); - break; - case (MDOC_Column): - if (MDOC_BODY == node->type) - return(0); - break; - default: - break; - } + /* Remove the p->overstep width. */ - return(1); -} + bp += (int)/* LINTED */ + p->overstep; + p->overstep = 0; + } + /* + * Skip leading tabs, they were handled above. + */ + while (i < (int)p->col && '\t' == p->buf[i]) + i++; -/* ARGSUSED */ -static void -termp_it_post(DECL_ARGS) -{ - int type; + /* Write out the [remaining] word. */ + for ( ; i < (int)p->col; i++) { + if (vend > bp && jhy > 0 && i > jhy) + break; + if ('\t' == p->buf[i]) + break; + if (' ' == p->buf[i]) { + while (' ' == p->buf[i]) { + vbl += (*p->width)(p, p->buf[i]); + i++; + } + break; + } + if (ASCII_NBRSP == p->buf[i]) { + vbl += (*p->width)(p, ' '); + continue; + } - if (MDOC_BODY != node->type && MDOC_HEAD != node->type) - return; + /* + * 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; + } - type = arg_listtype(node->parent->parent->parent); - - switch (type) { - case (MDOC_Diag): - /* FALLTHROUGH */ - case (MDOC_Item): - /* FALLTHROUGH */ - case (MDOC_Inset): - if (MDOC_BODY == node->type) - term_flushln(p); - break; - case (MDOC_Column): - if (MDOC_HEAD == node->type) - term_flushln(p); - break; - default: - term_flushln(p); - 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]); + } + } + vend += vbl; + vis = vend; } - p->offset = pair->offset; - p->rmargin = pair->rmargin; - p->flags = pair->flag; -} + p->col = 0; + p->overstep = 0; - -/* ARGSUSED */ -static int -termp_nm_pre(DECL_ARGS) -{ - - if (SEC_SYNOPSIS == node->sec) - term_newln(p); - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_PROG]); - if (NULL == node->child) - term_word(p, meta->name); - - return(1); -} - - -/* ARGSUSED */ -static int -termp_fl_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_FLAG]); - term_word(p, "\\-"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static int -termp_ar_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_ARG]); - return(1); -} - - -/* ARGSUSED */ -static int -termp_ns_pre(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static int -termp_pp_pre(DECL_ARGS) -{ - - term_vspace(p); - return(1); -} - - -/* ARGSUSED */ -static int -termp_st_pre(DECL_ARGS) -{ - const char *cp; - - if (node->child && (cp = mdoc_a2st(node->child->string))) - term_word(p, cp); - return(0); -} - - -/* ARGSUSED */ -static int -termp_rs_pre(DECL_ARGS) -{ - - if (MDOC_BLOCK == node->type && node->prev) - term_vspace(p); - return(1); -} - - -/* ARGSUSED */ -static int -termp_rv_pre(DECL_ARGS) -{ - int i; - - if (-1 == (i = arg_getattr(MDOC_Std, node))) - errx(1, "expected -std argument"); - if (1 != node->args->argv[i].sz) - errx(1, "expected -std argument"); - - term_newln(p); - term_word(p, "The"); - - p->flags |= ttypes[TTYPE_FUNC_NAME]; - term_word(p, *node->args->argv[i].value); - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; - p->flags |= TERMP_NOSPACE; - - term_word(p, "() function returns the value 0 if successful;"); - term_word(p, "otherwise the value -1 is returned and the"); - term_word(p, "global variable"); - - p->flags |= ttypes[TTYPE_VAR_DECL]; - term_word(p, "errno"); - p->flags &= ~ttypes[TTYPE_VAR_DECL]; - - term_word(p, "is set to indicate the error."); - - return(1); -} - - -/* ARGSUSED */ -static int -termp_ex_pre(DECL_ARGS) -{ - int i; - - if (-1 == (i = arg_getattr(MDOC_Std, node))) - errx(1, "expected -std argument"); - if (1 != node->args->argv[i].sz) - errx(1, "expected -std argument"); - - term_word(p, "The"); - p->flags |= ttypes[TTYPE_PROG]; - term_word(p, *node->args->argv[i].value); - p->flags &= ~ttypes[TTYPE_PROG]; - term_word(p, "utility exits 0 on success, and >0 if an error occurs."); - - return(1); -} - - -/* ARGSUSED */ -static int -termp_nd_pre(DECL_ARGS) -{ - - term_word(p, "\\-"); - return(1); -} - - -/* ARGSUSED */ -static void -termp_bl_post(DECL_ARGS) -{ - - if (MDOC_BLOCK == node->type) - term_newln(p); -} - - -/* ARGSUSED */ -static void -termp_op_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) + if ( ! (TERMP_NOBREAK & p->flags)) { + p->viscol = 0; + (*p->endline)(p); return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(rB"); -} + } + if (TERMP_HANG & p->flags) { + /* We need one blank after the tag. */ + p->overstep = /* LINTED */ + vis - maxvis + (*p->width)(p, ' '); -/* ARGSUSED */ -static int -termp_xr_pre(DECL_ARGS) -{ - const struct mdoc_node *n; + /* + * 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); + /* LINTED */ + maxvis += p->overstep; + } else + p->overstep = 0; - if (NULL == (n = node->child)) - errx(1, "expected text line argument"); - term_word(p, n->string); - if (NULL == (n = n->next)) - return(0); - p->flags |= TERMP_NOSPACE; - term_word(p, "("); - p->flags |= TERMP_NOSPACE; - term_word(p, n->string); - p->flags |= TERMP_NOSPACE; - term_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) - term_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) + } else if (TERMP_DANGLE & p->flags) return; - term_newln(p); - if (node->next && MDOC_Fd != node->next->tok) - term_vspace(p); -} - -/* ARGSUSED */ -static int -termp_sh_pre(DECL_ARGS) -{ - - switch (node->type) { - case (MDOC_HEAD): - term_vspace(p); - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SECTION]); - break; - case (MDOC_BODY): - p->offset = INDENT; - break; - default: - break; + /* Right-pad. */ + if (maxvis > vis + /* LINTED */ + ((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); } - return(1); } -/* ARGSUSED */ -static void -termp_sh_post(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) { - switch (node->type) { - case (MDOC_HEAD): - term_newln(p); - break; - case (MDOC_BODY): - term_newln(p); - p->offset = 0; - break; - default: - break; + p->flags |= TERMP_NOSPACE; + if (0 == p->col && 0 == p->viscol) { + p->flags &= ~TERMP_NOLPAD; + return; } + term_flushln(p); + p->flags &= ~TERMP_NOLPAD; } -/* ARGSUSED */ -static int -termp_op_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) { - switch (node->type) { - case (MDOC_BODY): - term_word(p, "\\(lB"); - p->flags |= TERMP_NOSPACE; - break; - default: - break; - } - return(1); -} - - -/* ARGSUSED */ -static int -termp_bt_pre(DECL_ARGS) -{ - - term_word(p, "is currently in beta test."); - return(1); -} - - -/* ARGSUSED */ -static int -termp_lb_pre(DECL_ARGS) -{ - const char *lb; - - if (NULL == node->child) - errx(1, "expected text line argument"); - if ((lb = mdoc_a2lib(node->child->string))) { - term_word(p, lb); - return(0); - } - term_word(p, "library"); - return(1); -} - - -/* ARGSUSED */ -static void -termp_lb_post(DECL_ARGS) -{ - term_newln(p); + p->viscol = 0; + (*p->endline)(p); } -/* ARGSUSED */ -static int -termp_ud_pre(DECL_ARGS) -{ - - term_word(p, "currently under development."); - return(1); -} - - -/* ARGSUSED */ -static int -termp_d1_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_newln(p); - p->offset += (pair->offset = INDENT); - return(1); -} - - -/* ARGSUSED */ static void -termp_d1_post(DECL_ARGS) +spec(struct termp *p, const char *word, size_t len) { + const char *rhs; + size_t sz; - if (MDOC_BODY != node->type) - return; - term_newln(p); - p->offset -= pair->offset; + rhs = chars_spec2str(p->symtab, word, len, &sz); + if (rhs) + encode(p, rhs, sz); } -/* ARGSUSED */ -static int -termp_aq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\\(la"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ static void -termp_aq_post(DECL_ARGS) +res(struct termp *p, const char *word, size_t len) { + const char *rhs; + size_t sz; - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(ra"); + rhs = chars_res2str(p->symtab, word, len, &sz); + if (rhs) + encode(p, rhs, sz); } -/* ARGSUSED */ -static int -termp_ft_pre(DECL_ARGS) +void +term_fontlast(struct termp *p) { + enum termfont f; - if (SEC_SYNOPSIS == node->sec) - if (node->prev && MDOC_Fo == node->prev->tok) - term_vspace(p); - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_TYPE]); - return(1); + f = p->fontl; + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; } -/* ARGSUSED */ -static void -termp_ft_post(DECL_ARGS) +void +term_fontrepl(struct termp *p, enum termfont f) { - if (SEC_SYNOPSIS == node->sec) - term_newln(p); + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; } -/* ARGSUSED */ -static int -termp_fn_pre(DECL_ARGS) +void +term_fontpush(struct termp *p, enum termfont f) { - const struct mdoc_node *n; - if (NULL == node->child) - errx(1, "expected text line arguments"); - - /* FIXME: can be "type funcname" "type varname"... */ - - p->flags |= ttypes[TTYPE_FUNC_NAME]; - term_word(p, node->child->string); - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; - - p->flags |= TERMP_NOSPACE; - term_word(p, "("); - - for (n = node->child->next; n; n = n->next) { - p->flags |= ttypes[TTYPE_FUNC_ARG]; - term_word(p, n->string); - p->flags &= ~ttypes[TTYPE_FUNC_ARG]; - if (n->next) - term_word(p, ","); - } - - term_word(p, ")"); - - if (SEC_SYNOPSIS == node->sec) - term_word(p, ";"); - - return(0); + assert(p->fonti + 1 < 10); + p->fontl = p->fontq[p->fonti]; + p->fontq[++p->fonti] = f; } -/* ARGSUSED */ -static void -termp_fn_post(DECL_ARGS) +const void * +term_fontq(struct termp *p) { - if (node->sec == SEC_SYNOPSIS && node->next) - term_vspace(p); - + return(&p->fontq[p->fonti]); } -/* ARGSUSED */ -static int -termp_sx_pre(DECL_ARGS) +enum termfont +term_fonttop(struct termp *p) { - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_LINK]); - return(1); + return(p->fontq[p->fonti]); } -/* ARGSUSED */ -static int -termp_fa_pre(DECL_ARGS) +void +term_fontpopq(struct termp *p, const void *key) { - struct mdoc_node *n; - if (node->parent->tok != MDOC_Fo) { - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_ARG]); - return(1); - } - - for (n = node->child; n; n = n->next) { - p->flags |= ttypes[TTYPE_FUNC_ARG]; - term_word(p, n->string); - p->flags &= ~ttypes[TTYPE_FUNC_ARG]; - if (n->next) - term_word(p, ","); - } - - if (node->child && node->next && node->next->tok == MDOC_Fa) - term_word(p, ","); - - return(0); + while (p->fonti >= 0 && key != &p->fontq[p->fonti]) + p->fonti--; + assert(p->fonti >= 0); } -/* ARGSUSED */ -static int -termp_va_pre(DECL_ARGS) +void +term_fontpop(struct termp *p) { - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_VAR_DECL]); - return(1); + assert(p->fonti); + p->fonti--; } -/* ARGSUSED */ -static int -termp_bd_pre(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) { - int i, type, ln; + const char *sv, *seq; + int sz; + size_t ssz; + enum roffdeco deco; - /* - * This is fairly tricky due primarily to crappy documentation. - * If -ragged or -filled are specified, the block does nothing - * but change the indentation. - * - * If, on the other hand, -unfilled or -literal are specified, - * then the game changes. Text is printed exactly as entered in - * the display: if a macro line, a newline is appended to the - * line. Blank lines are allowed. - */ + sv = word; - if (MDOC_BLOCK == node->type) - return(fmt_block_vspace(p, node, node)); - else if (MDOC_BODY != node->type) - return(1); - - if (NULL == node->parent->args) - errx(1, "missing display type"); - - pair->offset = p->offset; - - for (type = -1, i = 0; - i < (int)node->parent->args->argc; i++) { - switch (node->parent->args->argv[i].arg) { - case (MDOC_Ragged): + if (word[0] && '\0' == word[1]) + switch (word[0]) { + case('.'): /* FALLTHROUGH */ - case (MDOC_Filled): + case(','): /* FALLTHROUGH */ - case (MDOC_Unfilled): + case(';'): /* FALLTHROUGH */ - case (MDOC_Literal): - type = node->parent->args->argv[i].arg; - i = (int)node->parent->args->argc; + case(':'): + /* FALLTHROUGH */ + case('?'): + /* FALLTHROUGH */ + case('!'): + /* FALLTHROUGH */ + case(')'): + /* FALLTHROUGH */ + case(']'): + if ( ! (TERMP_IGNDELIM & p->flags)) + p->flags |= TERMP_NOSPACE; 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); } - if (NULL == node->parent->args) - errx(1, "missing display type"); + if ( ! (p->flags & TERMP_NONOSPACE)) + p->flags &= ~TERMP_NOSPACE; - i = arg_getattr(MDOC_Offset, node->parent); - if (-1 != i) { - if (1 != node->parent->args->argv[i].sz) - errx(1, "expected single value"); - p->offset += arg_offset(&node->parent->args->argv[i]); - } + p->flags &= ~TERMP_SENTENCE; - switch (type) { - case (MDOC_Literal): - /* FALLTHROUGH */ - case (MDOC_Unfilled): - break; - default: - return(1); - } + while (*word) { + if ((ssz = strcspn(word, "\\")) > 0) + encode(p, word, ssz); - /* - * Tricky. Iterate through all children. If we're on a - * different parse line, append a newline and then the contents. - * Ew. - */ + word += ssz; + if ('\\' != *word) + continue; - p->flags |= TERMP_LITERAL; - ln = node->child ? node->child->line : 0; + seq = ++word; + sz = a2roffdeco(&deco, &seq, &ssz); - for (node = node->child; node; node = node->next) { - if (ln < node->line) { - term_flushln(p); - p->flags |= TERMP_NOSPACE; + switch (deco) { + case (DECO_RESERVED): + res(p, seq, ssz); + break; + case (DECO_SPECIAL): + spec(p, seq, ssz); + break; + case (DECO_BOLD): + term_fontrepl(p, TERMFONT_BOLD); + break; + case (DECO_ITALIC): + term_fontrepl(p, TERMFONT_UNDER); + break; + case (DECO_ROMAN): + term_fontrepl(p, TERMFONT_NONE); + break; + case (DECO_PREVIOUS): + term_fontlast(p); + break; + default: + break; } - ln = node->line; - term_node(p, pair, meta, node); + + word += sz; + if (DECO_NOSPACE == deco && '\0' == *word) + p->flags |= TERMP_NOSPACE; } - return(0); + /* + * Note that we don't process the pipe: the parser sees it as + * punctuation, but we don't in terms of typography. + */ + if (sv[0] && '\0' == sv[1]) + switch (sv[0]) { + case('('): + /* FALLTHROUGH */ + case('['): + p->flags |= TERMP_NOSPACE; + break; + default: + break; + } } -/* ARGSUSED */ static void -termp_bd_post(DECL_ARGS) +adjbuf(struct termp *p, size_t sz) { - if (MDOC_BODY != node->type) - return; + if (0 == p->maxcols) + p->maxcols = 1024; + while (sz >= p->maxcols) + p->maxcols <<= 2; - term_flushln(p); - p->flags &= ~TERMP_LITERAL; - p->offset = pair->offset; - p->flags |= TERMP_NOSPACE; + p->buf = realloc(p->buf, p->maxcols); + if (NULL == p->buf) { + perror(NULL); + exit(EXIT_FAILURE); + } } -/* ARGSUSED */ -static int -termp_qq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\""); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ static void -termp_qq_post(DECL_ARGS) +buffera(struct termp *p, const char *word, size_t sz) { - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\""); -} + if (p->col + sz >= p->maxcols) + adjbuf(p, p->col + sz); - -/* ARGSUSED */ -static int -termp_bsx_pre(DECL_ARGS) -{ - - term_word(p, "BSDI BSD/OS"); - return(1); + memcpy(&p->buf[(int)p->col], word, sz); + p->col += sz; } -/* ARGSUSED */ static void -termp_bx_post(DECL_ARGS) +bufferc(struct termp *p, char c) { - if (node->child) - p->flags |= TERMP_NOSPACE; - term_word(p, "BSD"); -} + if (p->col + 1 >= p->maxcols) + adjbuf(p, p->col + 1); - -/* ARGSUSED */ -static int -termp_ox_pre(DECL_ARGS) -{ - - term_word(p, "OpenBSD"); - return(1); + p->buf[(int)p->col++] = c; } -/* ARGSUSED */ -static int -termp_dx_pre(DECL_ARGS) +static void +encode(struct termp *p, const char *word, size_t sz) { + enum termfont f; + int i; - term_word(p, "DragonFly"); - return(1); -} + /* + * Encode and buffer a string of characters. If the current + * font mode is unset, buffer directly, else encode then buffer + * character by character. + */ + if (TERMFONT_NONE == (f = term_fonttop(p))) { + buffera(p, word, sz); + return; + } -/* ARGSUSED */ -static int -termp_ux_pre(DECL_ARGS) -{ + for (i = 0; i < (int)sz; i++) { + if ( ! isgraph((u_char)word[i])) { + bufferc(p, word[i]); + continue; + } - term_word(p, "UNIX"); - return(1); -} + if (TERMFONT_UNDER == f) + bufferc(p, '_'); + else + bufferc(p, word[i]); - -/* ARGSUSED */ -static int -termp_fx_pre(DECL_ARGS) -{ - - term_word(p, "FreeBSD"); - return(1); + bufferc(p, 8); + bufferc(p, word[i]); + } } -/* ARGSUSED */ -static int -termp_nx_pre(DECL_ARGS) +size_t +term_len(const struct termp *p, size_t sz) { - term_word(p, "NetBSD"); - return(1); + return((*p->width)(p, ' ') * sz); } -/* ARGSUSED */ -static int -termp_sq_pre(DECL_ARGS) +size_t +term_strlen(const struct termp *p, const char *cp) { + size_t sz; - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\\(oq"); - p->flags |= TERMP_NOSPACE; - return(1); -} + for (sz = 0; *cp; cp++) + sz += (*p->width)(p, *cp); - -/* ARGSUSED */ -static void -termp_sq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(aq"); + return(sz); } /* ARGSUSED */ -static int -termp_pf_pre(DECL_ARGS) +size_t +term_vspan(const struct termp *p, const struct roffsu *su) { + double r; - 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_BLOCK): - term_newln(p); - if (node->prev) - term_vspace(p); + switch (su->unit) { + case (SCALE_CM): + r = su->scale * 2; break; - case (MDOC_HEAD): - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SSECTION]); - p->offset = INDENT / 2; + case (SCALE_IN): + r = su->scale * 6; break; - default: + case (SCALE_PC): + r = su->scale; break; - } - - return(1); -} - - -/* ARGSUSED */ -static void -termp_ss_post(DECL_ARGS) -{ - - switch (node->type) { - case (MDOC_HEAD): - term_newln(p); - p->offset = INDENT; + 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); + v = ((*p->hspan)(p, su)); + if (v < 0.0) + v = 0.0; + return((size_t) /* LINTED */ + v); } - - -/* ARGSUSED */ -static int -termp_cd_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CONFIG]); - term_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]); - term_word(p, "#include"); - term_word(p, "<"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_in_post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - term_word(p, ">"); - - term_newln(p); - if (SEC_SYNOPSIS != node->sec) - return; - if (node->next && MDOC_In != node->next->tok) - term_vspace(p); -} - - -/* ARGSUSED */ -static int -termp_at_pre(DECL_ARGS) -{ - const char *att; - - att = NULL; - - if (node->child) - att = mdoc_a2att(node->child->string); - if (NULL == att) - att = "AT&T UNIX"; - - term_word(p, att); - return(0); -} - - -/* ARGSUSED */ -static int -termp_brq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\\(lC"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_brq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(rC"); -} - - -/* ARGSUSED */ -static int -termp_bq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\\(lB"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_bq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(rB"); -} - - -/* ARGSUSED */ -static int -termp_pq_pre(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return(1); - term_word(p, "\\&("); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp_pq_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - term_word(p, ")"); -} - - -/* ARGSUSED */ -static int -termp_fo_pre(DECL_ARGS) -{ - const struct mdoc_node *n; - - if (MDOC_BODY == node->type) { - term_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) { - if (MDOC_TEXT != n->type) - errx(1, "expected text line argument"); - term_word(p, n->string); - } - p->flags &= ~ttypes[TTYPE_FUNC_NAME]; - - return(0); -} - - -/* ARGSUSED */ -static void -termp_fo_post(DECL_ARGS) -{ - - if (MDOC_BODY != node->type) - return; - p->flags |= TERMP_NOSPACE; - term_word(p, ")"); - p->flags |= TERMP_NOSPACE; - term_word(p, ";"); - term_newln(p); -} - - -/* ARGSUSED */ -static int -termp_bf_pre(DECL_ARGS) -{ - const struct mdoc_node *n; - - if (MDOC_HEAD == node->type) { - return(0); - } else if (MDOC_BLOCK != node->type) - return(1); - - if (NULL == (n = node->head->child)) { - if (arg_hasattr(MDOC_Emphasis, node)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - else if (arg_hasattr(MDOC_Symbolic, node)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMB]); - - return(1); - } - - if (MDOC_TEXT != n->type) - errx(1, "expected text line arguments"); - - if (0 == strcmp("Em", n->string)) - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]); - else if (0 == strcmp("Sy", n->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 (NULL == node->child || MDOC_TEXT != node->child->type) - errx(1, "expected boolean line argument"); - - if (0 == strcmp("on", node->child->string)) { - p->flags &= ~TERMP_NONOSPACE; - p->flags &= ~TERMP_NOSPACE; - } else - p->flags |= TERMP_NONOSPACE; - - return(0); -} - - -/* ARGSUSED */ -static int -termp_ap_pre(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - term_word(p, "\\(aq"); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static int -termp__j_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_REF_JOURNAL]); - return(1); -} - - -/* ARGSUSED */ -static int -termp__t_pre(DECL_ARGS) -{ - - term_word(p, "\""); - p->flags |= TERMP_NOSPACE; - return(1); -} - - -/* ARGSUSED */ -static void -termp__t_post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - term_word(p, "\""); - termp____post(p, pair, meta, node); -} - - -/* ARGSUSED */ -static void -termp____post(DECL_ARGS) -{ - - p->flags |= TERMP_NOSPACE; - term_word(p, node->next ? "," : "."); -} - - -/* ARGSUSED */ -static int -termp_lk_pre(DECL_ARGS) -{ - const struct mdoc_node *n; - - if (NULL == (n = node->child)) - errx(1, "expected line argument"); - - p->flags |= ttypes[TTYPE_LINK_ANCHOR]; - term_word(p, n->string); - p->flags &= ~ttypes[TTYPE_LINK_ANCHOR]; - p->flags |= TERMP_NOSPACE; - term_word(p, ":"); - - p->flags |= ttypes[TTYPE_LINK_TEXT]; - for ( ; n; n = n->next) { - term_word(p, n->string); - } - p->flags &= ~ttypes[TTYPE_LINK_TEXT]; - - return(0); -} - - -/* ARGSUSED */ -static int -termp_mt_pre(DECL_ARGS) -{ - - TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_LINK_ANCHOR]); - return(1); -} -