=================================================================== RCS file: /cvs/mandoc/man_term.c,v retrieving revision 1.98 retrieving revision 1.170 diff -u -p -r1.98 -r1.170 --- mandoc/man_term.c 2011/01/16 20:12:45 1.98 +++ mandoc/man_term.c 2015/03/15 16:53:41 1.170 @@ -1,7 +1,7 @@ -/* $Id: man_term.c,v 1.98 2011/01/16 20:12:45 schwarze Exp $ */ +/* $Id: man_term.c,v 1.170 2015/03/15 16:53:41 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2010, 2011 Ingo Schwarze + * Copyright (c) 2008-2012 Kristaps Dzonsons + * Copyright (c) 2010-2015 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 @@ -15,54 +15,40 @@ * 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 "mandoc.h" +#include "mandoc_aux.h" #include "out.h" #include "man.h" #include "term.h" -#include "chars.h" #include "main.h" -#define INDENT 7 -#define HALFINDENT 3 +#define MAXMARGINS 64 /* maximum number of indented scopes */ -/* FIXME: have PD set the default vspace width. */ - struct mtermp { int fl; #define MANT_LITERAL (1 << 0) - /* - * Default amount to indent the left margin after leading text - * has been printed (e.g., `HP' left-indent, `TP' and `IP' body - * indent). This needs to be saved because `HP' and so on, if - * not having a specified value, must default. - * - * Note that this is the indentation AFTER the left offset, so - * the total offset is usually offset + lmargin. - */ - size_t lmargin; - /* - * The default offset, i.e., the amount between any text and the - * page boundary. - */ - size_t offset; + int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */ + int lmargincur; /* index of current margin */ + int lmarginsz; /* actual number of nested margins */ + size_t offset; /* default offset to visible page */ + int pardist; /* vert. space before par., unit: [v] */ }; -#define DECL_ARGS struct termp *p, \ +#define DECL_ARGS struct termp *p, \ struct mtermp *mt, \ - const struct man_node *n, \ - const struct man_meta *m + struct man_node *n, \ + const struct man_meta *meta struct termact { int (*pre)(DECL_ARGS); @@ -71,31 +57,32 @@ struct termact { #define MAN_NOTEXT (1 << 0) /* Never has text children. */ }; -static int a2width(const struct termp *, const char *); -static size_t a2height(const struct termp *, const char *); - static void print_man_nodelist(DECL_ARGS); static void print_man_node(DECL_ARGS); static void print_man_head(struct termp *, const void *); static void print_man_foot(struct termp *, const void *); -static void print_bvspace(struct termp *, - const struct man_node *); +static void print_bvspace(struct termp *, + const struct man_node *, int); -static int pre_alternate(DECL_ARGS); static int pre_B(DECL_ARGS); static int pre_HP(DECL_ARGS); static int pre_I(DECL_ARGS); static int pre_IP(DECL_ARGS); +static int pre_OP(DECL_ARGS); +static int pre_PD(DECL_ARGS); static int pre_PP(DECL_ARGS); static int pre_RS(DECL_ARGS); static int pre_SH(DECL_ARGS); static int pre_SS(DECL_ARGS); static int pre_TP(DECL_ARGS); +static int pre_UR(DECL_ARGS); +static int pre_alternate(DECL_ARGS); +static int pre_ft(DECL_ARGS); static int pre_ign(DECL_ARGS); static int pre_in(DECL_ARGS); static int pre_literal(DECL_ARGS); +static int pre_ll(DECL_ARGS); static int pre_sp(DECL_ARGS); -static int pre_ft(DECL_ARGS); static void post_IP(DECL_ARGS); static void post_HP(DECL_ARGS); @@ -103,6 +90,7 @@ static void post_RS(DECL_ARGS); static void post_SH(DECL_ARGS); static void post_SS(DECL_ARGS); static void post_TP(DECL_ARGS); +static void post_UR(DECL_ARGS); static const struct termact termacts[MAN_MAX] = { { pre_sp, NULL, MAN_NOTEXT }, /* br */ @@ -114,7 +102,7 @@ static const struct termact termacts[MAN_MAX] = { { pre_PP, NULL, 0 }, /* PP */ { pre_PP, NULL, 0 }, /* P */ { pre_IP, post_IP, 0 }, /* IP */ - { pre_HP, post_HP, 0 }, /* HP */ + { pre_HP, post_HP, 0 }, /* HP */ { NULL, NULL, 0 }, /* SM */ { pre_B, NULL, 0 }, /* SB */ { pre_alternate, NULL, 0 }, /* BI */ @@ -126,114 +114,116 @@ static const struct termact termacts[MAN_MAX] = { { pre_I, NULL, 0 }, /* I */ { pre_alternate, NULL, 0 }, /* IR */ { pre_alternate, NULL, 0 }, /* RI */ - { NULL, NULL, MAN_NOTEXT }, /* na */ { pre_sp, NULL, MAN_NOTEXT }, /* sp */ { pre_literal, NULL, 0 }, /* nf */ { pre_literal, NULL, 0 }, /* fi */ { NULL, NULL, 0 }, /* RE */ { pre_RS, post_RS, 0 }, /* RS */ { pre_ign, NULL, 0 }, /* DT */ - { pre_ign, NULL, 0 }, /* UC */ - { pre_ign, NULL, 0 }, /* PD */ + { pre_ign, NULL, MAN_NOTEXT }, /* UC */ + { pre_PD, NULL, MAN_NOTEXT }, /* PD */ { pre_ign, NULL, 0 }, /* AT */ { pre_in, NULL, MAN_NOTEXT }, /* in */ { pre_ft, NULL, MAN_NOTEXT }, /* ft */ + { pre_OP, NULL, 0 }, /* OP */ + { pre_literal, NULL, 0 }, /* EX */ + { pre_literal, NULL, 0 }, /* EE */ + { pre_UR, post_UR, 0 }, /* UR */ + { NULL, NULL, 0 }, /* UE */ + { pre_ll, NULL, MAN_NOTEXT }, /* ll */ }; - void terminal_man(void *arg, const struct man *man) { struct termp *p; - const struct man_node *n; - const struct man_meta *m; + const struct man_meta *meta; + struct man_node *n; struct mtermp mt; p = (struct termp *)arg; p->overstep = 0; - p->maxrmargin = p->defrmargin; + p->rmargin = p->maxrmargin = p->defrmargin; p->tabwidth = term_len(p, 5); - if (NULL == p->symtab) - switch (p->enc) { - case (TERMENC_ASCII): - p->symtab = chars_init(CHARS_ASCII); - break; - default: - abort(); - /* NOTREACHED */ - } + n = man_node(man)->child; + meta = man_meta(man); - n = man_node(man); - m = man_meta(man); + memset(&mt, 0, sizeof(struct mtermp)); - term_begin(p, print_man_head, print_man_foot, m); - p->flags |= TERMP_NOSPACE; + mt.lmargin[mt.lmargincur] = term_len(p, p->defindent); + mt.offset = term_len(p, p->defindent); + mt.pardist = 1; - mt.fl = 0; - mt.lmargin = term_len(p, INDENT); - mt.offset = term_len(p, INDENT); - - if (n->child) - print_man_nodelist(p, &mt, n->child, m); - - term_end(p); + if (p->synopsisonly) { + while (n != NULL) { + if (n->tok == MAN_SH && + n->child->child->type == MAN_TEXT && + !strcmp(n->child->child->string, "SYNOPSIS")) { + if (n->child->next->child != NULL) + print_man_nodelist(p, &mt, + n->child->next->child, meta); + term_newln(p); + break; + } + n = n->next; + } + } else { + if (p->defindent == 0) + p->defindent = 7; + term_begin(p, print_man_head, print_man_foot, meta); + p->flags |= TERMP_NOSPACE; + if (n != NULL) + print_man_nodelist(p, &mt, n, meta); + term_end(p); + } } - -static size_t -a2height(const struct termp *p, const char *cp) +/* + * Printing leading vertical space before a block. + * This is used for the paragraph macros. + * The rules are pretty simple, since there's very little nesting going + * on here. Basically, if we're the first within another block (SS/SH), + * then don't emit vertical space. If we are (RS), then do. If not the + * first, print it. + */ +static void +print_bvspace(struct termp *p, const struct man_node *n, int pardist) { - struct roffsu su; + int i; - if ( ! a2roffsu(cp, &su, SCALE_VS)) - SCALE_VS_INIT(&su, term_strlen(p, cp)); + term_newln(p); - return(term_vspan(p, &su)); -} + if (n->body && n->body->child) + if (MAN_TBL == n->body->child->type) + return; + if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok) + if (NULL == n->prev) + return; -static int -a2width(const struct termp *p, const char *cp) -{ - struct roffsu su; - - if ( ! a2roffsu(cp, &su, SCALE_BU)) - return(-1); - - return((int)term_hspan(p, &su)); + for (i = 0; i < pardist; i++) + term_vspace(p); } -static void -print_bvspace(struct termp *p, const struct man_node *n) +static int +pre_ign(DECL_ARGS) { - term_newln(p); - if (NULL == n->prev) - return; - - if (MAN_SS == n->prev->tok) - return; - if (MAN_SH == n->prev->tok) - return; - - term_vspace(p); + return(0); } - -/* ARGSUSED */ static int -pre_ign(DECL_ARGS) +pre_ll(DECL_ARGS) { + term_setwidth(p, n->nchild ? n->child->string : NULL); return(0); } - -/* ARGSUSED */ static int pre_I(DECL_ARGS) { @@ -242,52 +232,78 @@ pre_I(DECL_ARGS) return(1); } - -/* ARGSUSED */ static int pre_literal(DECL_ARGS) { term_newln(p); - if (MAN_nf == n->tok) + if (MAN_nf == n->tok || MAN_EX == n->tok) mt->fl |= MANT_LITERAL; else mt->fl &= ~MANT_LITERAL; - return(1); + /* + * Unlike .IP and .TP, .HP does not have a HEAD. + * So in case a second call to term_flushln() is needed, + * indentation has to be set up explicitly. + */ + if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) { + p->offset = p->rmargin; + p->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + p->flags |= TERMP_NOSPACE; + } + + return(0); } -/* ARGSUSED */ static int +pre_PD(DECL_ARGS) +{ + struct roffsu su; + + n = n->child; + if (n == NULL) { + mt->pardist = 1; + return(0); + } + assert(MAN_TEXT == n->type); + if (a2roffsu(n->string, &su, SCALE_VS)) + mt->pardist = term_vspan(p, &su); + return(0); +} + +static int pre_alternate(DECL_ARGS) { enum termfont font[2]; - const struct man_node *nn; + struct man_node *nn; int savelit, i; switch (n->tok) { - case (MAN_RB): + case MAN_RB: font[0] = TERMFONT_NONE; font[1] = TERMFONT_BOLD; break; - case (MAN_RI): + case MAN_RI: font[0] = TERMFONT_NONE; font[1] = TERMFONT_UNDER; break; - case (MAN_BR): + case MAN_BR: font[0] = TERMFONT_BOLD; font[1] = TERMFONT_NONE; break; - case (MAN_BI): + case MAN_BI: font[0] = TERMFONT_BOLD; font[1] = TERMFONT_UNDER; break; - case (MAN_IR): + case MAN_IR: font[0] = TERMFONT_UNDER; font[1] = TERMFONT_NONE; break; - case (MAN_IB): + case MAN_IB: font[0] = TERMFONT_UNDER; font[1] = TERMFONT_BOLD; break; @@ -302,7 +318,7 @@ pre_alternate(DECL_ARGS) term_fontrepl(p, font[i]); if (savelit && NULL == nn->next) mt->fl |= MANT_LITERAL; - print_man_node(p, mt, nn, m); + print_man_node(p, mt, nn, meta); if (nn->next) p->flags |= TERMP_NOSPACE; } @@ -310,7 +326,6 @@ pre_alternate(DECL_ARGS) return(0); } -/* ARGSUSED */ static int pre_B(DECL_ARGS) { @@ -319,8 +334,29 @@ pre_B(DECL_ARGS) return(1); } -/* ARGSUSED */ static int +pre_OP(DECL_ARGS) +{ + + term_word(p, "["); + p->flags |= TERMP_NOSPACE; + + if (NULL != (n = n->child)) { + term_fontrepl(p, TERMFONT_BOLD); + term_word(p, n->string); + } + if (NULL != n && NULL != n->next) { + term_fontrepl(p, TERMFONT_UNDER); + term_word(p, n->next->string); + } + + term_fontrepl(p, TERMFONT_NONE); + p->flags |= TERMP_NOSPACE; + term_word(p, "]"); + return(0); +} + +static int pre_ft(DECL_ARGS) { const char *cp; @@ -332,26 +368,26 @@ pre_ft(DECL_ARGS) cp = n->child->string; switch (*cp) { - case ('4'): + case '4': /* FALLTHROUGH */ - case ('3'): + case '3': /* FALLTHROUGH */ - case ('B'): + case 'B': term_fontrepl(p, TERMFONT_BOLD); break; - case ('2'): + case '2': /* FALLTHROUGH */ - case ('I'): + case 'I': term_fontrepl(p, TERMFONT_UNDER); break; - case ('P'): + case 'P': term_fontlast(p); break; - case ('1'): + case '1': /* FALLTHROUGH */ - case ('C'): + case 'C': /* FALLTHROUGH */ - case ('R'): + case 'R': term_fontrepl(p, TERMFONT_NONE); break; default: @@ -360,13 +396,13 @@ pre_ft(DECL_ARGS) return(0); } -/* ARGSUSED */ static int pre_in(DECL_ARGS) { - int len, less; - size_t v; + struct roffsu su; const char *cp; + size_t v; + int less; term_newln(p); @@ -385,106 +421,117 @@ pre_in(DECL_ARGS) else cp--; - if ((len = a2width(p, ++cp)) < 0) + if ( ! a2roffsu(++cp, &su, SCALE_EN)) return(0); - v = (size_t)len; + v = term_hspan(p, &su); if (less < 0) p->offset -= p->offset > v ? v : p->offset; else if (less > 0) p->offset += v; - else + else p->offset = v; + if (p->offset > SHRT_MAX) + p->offset = term_len(p, p->defindent); - /* Don't let this creep beyond the right margin. */ - - if (p->offset > p->rmargin) - p->offset = p->rmargin; - return(0); } - -/* ARGSUSED */ static int pre_sp(DECL_ARGS) { - size_t i, len; + struct roffsu su; + int i, len; - switch (n->tok) { - case (MAN_br): + if ((NULL == n->prev && n->parent)) { + switch (n->parent->tok) { + case MAN_SH: + /* FALLTHROUGH */ + case MAN_SS: + /* FALLTHROUGH */ + case MAN_PP: + /* FALLTHROUGH */ + case MAN_LP: + /* FALLTHROUGH */ + case MAN_P: + /* FALLTHROUGH */ + return(0); + default: + break; + } + } + + if (n->tok == MAN_br) len = 0; - break; - default: - len = n->child ? a2height(p, n->child->string) : 1; - break; + else if (n->child == NULL) + len = 1; + else { + if ( ! a2roffsu(n->child->string, &su, SCALE_VS)) + su.scale = 1.0; + len = term_vspan(p, &su); } - if (0 == len) + if (len == 0) term_newln(p); - for (i = 0; i < len; i++) - term_vspace(p); + else if (len < 0) + p->skipvsp -= len; + else + for (i = 0; i < len; i++) + term_vspace(p); return(0); } - -/* ARGSUSED */ static int pre_HP(DECL_ARGS) { - size_t len; - int ival; + struct roffsu su; const struct man_node *nn; + int len; switch (n->type) { - case (MAN_BLOCK): - print_bvspace(p, n); + case MAN_BLOCK: + print_bvspace(p, n, mt->pardist); return(1); - case (MAN_BODY): - p->flags |= TERMP_NOBREAK; - p->flags |= TERMP_TWOSPACE; + case MAN_BODY: break; default: return(0); } - len = mt->lmargin; - ival = -1; + if ( ! (MANT_LITERAL & mt->fl)) { + p->flags |= TERMP_NOBREAK | TERMP_BRIND; + p->trailspace = 2; + } /* Calculate offset. */ - if (NULL != (nn = n->parent->head->child)) - if ((ival = a2width(p, nn->string)) >= 0) - len = (size_t)ival; + if ((nn = n->parent->head->child) != NULL && + a2roffsu(nn->string, &su, SCALE_EN)) { + len = term_hspan(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; + } else + len = mt->lmargin[mt->lmargincur]; - if (0 == len) - len = term_len(p, 1); - p->offset = mt->offset; p->rmargin = mt->offset + len; - - if (ival >= 0) - mt->lmargin = (size_t)ival; - return(1); } - -/* ARGSUSED */ static void post_HP(DECL_ARGS) { switch (n->type) { - case (MAN_BLOCK): - term_flushln(p); - break; - case (MAN_BODY): - term_flushln(p); - p->flags &= ~TERMP_NOBREAK; - p->flags &= ~TERMP_TWOSPACE; + case MAN_BODY: + term_newln(p); + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + p->trailspace = 0; p->offset = mt->offset; p->rmargin = p->maxrmargin; break; @@ -493,16 +540,14 @@ post_HP(DECL_ARGS) } } - -/* ARGSUSED */ static int pre_PP(DECL_ARGS) { switch (n->type) { - case (MAN_BLOCK): - mt->lmargin = term_len(p, INDENT); - print_bvspace(p, n); + case MAN_BLOCK: + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + print_bvspace(p, n, mt->pardist); break; default: p->offset = mt->offset; @@ -512,64 +557,57 @@ pre_PP(DECL_ARGS) return(MAN_HEAD != n->type); } - -/* ARGSUSED */ static int pre_IP(DECL_ARGS) { + struct roffsu su; const struct man_node *nn; - size_t len; - int savelit, ival; + int len, savelit; switch (n->type) { - case (MAN_BODY): - p->flags |= TERMP_NOLPAD; + case MAN_BODY: p->flags |= TERMP_NOSPACE; break; - case (MAN_HEAD): + case MAN_HEAD: p->flags |= TERMP_NOBREAK; + p->trailspace = 1; break; - case (MAN_BLOCK): - print_bvspace(p, n); + case MAN_BLOCK: + print_bvspace(p, n, mt->pardist); /* FALLTHROUGH */ default: return(1); } - len = mt->lmargin; - ival = -1; - /* Calculate the offset from the optional second argument. */ - if (NULL != (nn = n->parent->head->child)) - if (NULL != (nn = nn->next)) - if ((ival = a2width(p, nn->string)) >= 0) - len = (size_t)ival; + if ((nn = n->parent->head->child) != NULL && + (nn = nn->next) != NULL && + a2roffsu(nn->string, &su, SCALE_EN)) { + len = term_hspan(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; + } else + len = mt->lmargin[mt->lmargincur]; switch (n->type) { - case (MAN_HEAD): - /* Handle zero-width lengths. */ - if (0 == len) - len = term_len(p, 1); - + case MAN_HEAD: p->offset = mt->offset; p->rmargin = mt->offset + len; - if (ival < 0) - break; - /* Set the saved left-margin. */ - mt->lmargin = (size_t)ival; - savelit = MANT_LITERAL & mt->fl; mt->fl &= ~MANT_LITERAL; if (n->child) - print_man_node(p, mt, n->child, m); + print_man_node(p, mt, n->child, meta); if (savelit) mt->fl |= MANT_LITERAL; return(0); - case (MAN_BODY): + case MAN_BODY: p->offset = mt->offset + len; p->rmargin = p->maxrmargin; break; @@ -580,70 +618,64 @@ pre_IP(DECL_ARGS) return(1); } - -/* ARGSUSED */ static void post_IP(DECL_ARGS) { switch (n->type) { - case (MAN_HEAD): + case MAN_HEAD: term_flushln(p); p->flags &= ~TERMP_NOBREAK; + p->trailspace = 0; p->rmargin = p->maxrmargin; break; - case (MAN_BODY): + case MAN_BODY: term_newln(p); - p->flags &= ~TERMP_NOLPAD; + p->offset = mt->offset; break; default: break; } } - -/* ARGSUSED */ static int pre_TP(DECL_ARGS) { - const struct man_node *nn; - size_t len; - int savelit, ival; + struct roffsu su; + struct man_node *nn; + int len, savelit; switch (n->type) { - case (MAN_HEAD): + case MAN_HEAD: p->flags |= TERMP_NOBREAK; + p->trailspace = 1; break; - case (MAN_BODY): - p->flags |= TERMP_NOLPAD; + case MAN_BODY: p->flags |= TERMP_NOSPACE; break; - case (MAN_BLOCK): - print_bvspace(p, n); + case MAN_BLOCK: + print_bvspace(p, n, mt->pardist); /* FALLTHROUGH */ default: return(1); } - len = (size_t)mt->lmargin; - ival = -1; - /* Calculate offset. */ - if (NULL != (nn = n->parent->head->child)) { - while (nn && MAN_TEXT != nn->type) - nn = nn->next; - if (nn && nn->next) - if ((ival = a2width(p, nn->string)) >= 0) - len = (size_t)ival; - } + if ((nn = n->parent->head->child) != NULL && + nn->string != NULL && ! (MAN_LINE & nn->flags) && + a2roffsu(nn->string, &su, SCALE_EN)) { + len = term_hspan(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; + } else + len = mt->lmargin[mt->lmargincur]; switch (n->type) { - case (MAN_HEAD): - /* Handle zero-length properly. */ - if (0 == len) - len = term_len(p, 1); - + case MAN_HEAD: p->offset = mt->offset; p->rmargin = mt->offset + len; @@ -651,20 +683,23 @@ pre_TP(DECL_ARGS) mt->fl &= ~MANT_LITERAL; /* Don't print same-line elements. */ - for (nn = n->child; nn; nn = nn->next) - if (nn->line > n->line) - print_man_node(p, mt, nn, m); + nn = n->child; + while (NULL != nn && 0 == (MAN_LINE & nn->flags)) + nn = nn->next; + while (NULL != nn) { + print_man_node(p, mt, nn, meta); + nn = nn->next; + } + if (savelit) mt->fl |= MANT_LITERAL; - - if (ival >= 0) - mt->lmargin = (size_t)ival; - return(0); - case (MAN_BODY): + case MAN_BODY: p->offset = mt->offset + len; p->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~TERMP_NOBREAK; break; default: break; @@ -673,51 +708,54 @@ pre_TP(DECL_ARGS) return(1); } - -/* ARGSUSED */ static void post_TP(DECL_ARGS) { switch (n->type) { - case (MAN_HEAD): + case MAN_HEAD: term_flushln(p); - p->flags &= ~TERMP_NOBREAK; - p->flags &= ~TERMP_TWOSPACE; - p->rmargin = p->maxrmargin; break; - case (MAN_BODY): + case MAN_BODY: term_newln(p); - p->flags &= ~TERMP_NOLPAD; + p->offset = mt->offset; break; default: break; } } - -/* ARGSUSED */ static int pre_SS(DECL_ARGS) { + int i; switch (n->type) { - case (MAN_BLOCK): - mt->lmargin = term_len(p, INDENT); - mt->offset = term_len(p, INDENT); - /* If following a prior empty `SS', no vspace. */ - if (n->prev && MAN_SS == n->prev->tok) - if (NULL == n->prev->body->child) - break; - if (NULL == n->prev) + case MAN_BLOCK: + mt->fl &= ~MANT_LITERAL; + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + mt->offset = term_len(p, p->defindent); + + /* + * No vertical space before the first subsection + * and after an empty subsection. + */ + + do { + n = n->prev; + } while (n != NULL && n->tok != MAN_MAX && + termacts[n->tok].flags & MAN_NOTEXT); + if (n == NULL || (n->tok == MAN_SS && n->body->child == NULL)) break; - term_vspace(p); + + for (i = 0; i < mt->pardist; i++) + term_vspace(p); break; - case (MAN_HEAD): + case MAN_HEAD: term_fontrepl(p, TERMFONT_BOLD); - p->offset = term_len(p, HALFINDENT); + p->offset = term_len(p, 3); break; - case (MAN_BODY): + case MAN_BODY: p->offset = mt->offset; break; default: @@ -727,17 +765,15 @@ pre_SS(DECL_ARGS) return(1); } - -/* ARGSUSED */ static void post_SS(DECL_ARGS) { - + switch (n->type) { - case (MAN_HEAD): + case MAN_HEAD: term_newln(p); break; - case (MAN_BODY): + case MAN_BODY: term_newln(p); break; default: @@ -745,30 +781,36 @@ post_SS(DECL_ARGS) } } - -/* ARGSUSED */ static int pre_SH(DECL_ARGS) { + int i; switch (n->type) { - case (MAN_BLOCK): - mt->lmargin = term_len(p, INDENT); - mt->offset = term_len(p, INDENT); - /* If following a prior empty `SH', no vspace. */ - if (n->prev && MAN_SH == n->prev->tok) - if (NULL == n->prev->body->child) - break; - /* If the first macro, no vspae. */ - if (NULL == n->prev) + case MAN_BLOCK: + mt->fl &= ~MANT_LITERAL; + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + mt->offset = term_len(p, p->defindent); + + /* + * No vertical space before the first section + * and after an empty section. + */ + + do { + n = n->prev; + } while (n != NULL && termacts[n->tok].flags & MAN_NOTEXT); + if (n == NULL || (n->tok == MAN_SH && n->body->child == NULL)) break; - term_vspace(p); + + for (i = 0; i < mt->pardist; i++) + term_vspace(p); break; - case (MAN_HEAD): + case MAN_HEAD: term_fontrepl(p, TERMFONT_BOLD); p->offset = 0; break; - case (MAN_BODY): + case MAN_BODY: p->offset = mt->offset; break; default: @@ -778,17 +820,15 @@ pre_SH(DECL_ARGS) return(1); } - -/* ARGSUSED */ static void post_SH(DECL_ARGS) { - + switch (n->type) { - case (MAN_HEAD): + case MAN_HEAD: term_newln(p); break; - case (MAN_BODY): + case MAN_BODY: term_newln(p); break; default: @@ -796,67 +836,94 @@ post_SH(DECL_ARGS) } } - -/* ARGSUSED */ static int pre_RS(DECL_ARGS) { - const struct man_node *nn; - int ival; + struct roffsu su; switch (n->type) { - case (MAN_BLOCK): + case MAN_BLOCK: term_newln(p); return(1); - case (MAN_HEAD): + case MAN_HEAD: return(0); default: break; } - if (NULL == (nn = n->parent->head->child)) { - mt->offset = mt->lmargin + term_len(p, INDENT); - p->offset = mt->offset; - return(1); - } + n = n->parent->head; + n->aux = SHRT_MAX + 1; + if (n->child != NULL && a2roffsu(n->child->string, &su, SCALE_EN)) + n->aux = term_hspan(p, &su); + if (n->aux < 0 && (size_t)(-n->aux) > mt->offset) + n->aux = -mt->offset; + else if (n->aux > SHRT_MAX) + n->aux = term_len(p, p->defindent); - if ((ival = a2width(p, nn->string)) < 0) - return(1); - - mt->offset = term_len(p, INDENT) + (size_t)ival; + mt->offset += n->aux; p->offset = mt->offset; + p->rmargin = p->maxrmargin; + if (++mt->lmarginsz < MAXMARGINS) + mt->lmargincur = mt->lmarginsz; + + mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1]; return(1); } - -/* ARGSUSED */ static void post_RS(DECL_ARGS) { switch (n->type) { - case (MAN_BLOCK): - mt->offset = mt->lmargin = term_len(p, INDENT); - break; - case (MAN_HEAD): - break; + case MAN_BLOCK: + return; + case MAN_HEAD: + return; default: term_newln(p); - p->offset = term_len(p, INDENT); break; } + + mt->offset -= n->parent->head->aux; + p->offset = mt->offset; + + if (--mt->lmarginsz < MAXMARGINS) + mt->lmargincur = mt->lmarginsz; } +static int +pre_UR(DECL_ARGS) +{ + return (MAN_HEAD != n->type); +} + static void +post_UR(DECL_ARGS) +{ + + if (MAN_BLOCK != n->type) + return; + + term_word(p, "<"); + p->flags |= TERMP_NOSPACE; + + if (NULL != n->child->child) + print_man_node(p, mt, n->child->child, meta); + + p->flags |= TERMP_NOSPACE; + term_word(p, ">"); +} + +static void print_man_node(DECL_ARGS) { size_t rm, rmax; int c; switch (n->type) { - case(MAN_TEXT): + case MAN_TEXT: /* * If we have a blank line, output a vertical space. * If we have a space as the first character, break @@ -869,34 +936,18 @@ print_man_node(DECL_ARGS) term_newln(p); term_word(p, n->string); + goto out; - /* - * If we're in a literal context, make sure that words - * togehter on the same line stay together. This is a - * POST-printing call, so we check the NEXT word. Since - * -man doesn't have nested macros, we don't need to be - * more specific than this. - */ - if (MANT_LITERAL & mt->fl && - (NULL == n->next || - n->next->line > n->line)) { - rm = p->rmargin; - rmax = p->maxrmargin; - p->rmargin = p->maxrmargin = TERM_MAXMARGIN; + case MAN_EQN: + if ( ! (n->flags & MAN_LINE)) p->flags |= TERMP_NOSPACE; - term_flushln(p); - p->flags &= ~TERMP_NOLPAD; - p->rmargin = rm; - p->maxrmargin = rmax; - } + term_eqn(p, n->eqn); + if (n->next != NULL && ! (n->next->flags & MAN_LINE)) + p->flags |= TERMP_NOSPACE; return; - case (MAN_TBL): - /* - * Tables are preceded by a newline. Then process a - * table line, which will cause line termination, - */ - if (TBL_SPAN_FIRST & n->span->flags) - term_newln(p); + case MAN_TBL: + if (p->tbl.cols == NULL) + term_vspace(p); term_tbl(p, n->span); return; default: @@ -908,16 +959,42 @@ print_man_node(DECL_ARGS) c = 1; if (termacts[n->tok].pre) - c = (*termacts[n->tok].pre)(p, mt, n, m); + c = (*termacts[n->tok].pre)(p, mt, n, meta); if (c && n->child) - print_man_nodelist(p, mt, n->child, m); + print_man_nodelist(p, mt, n->child, meta); if (termacts[n->tok].post) - (*termacts[n->tok].post)(p, mt, n, m); + (*termacts[n->tok].post)(p, mt, n, meta); if ( ! (MAN_NOTEXT & termacts[n->tok].flags)) term_fontrepl(p, TERMFONT_NONE); +out: + /* + * If we're in a literal context, make sure that words + * together on the same line stay together. This is a + * POST-printing call, so we check the NEXT word. Since + * -man doesn't have nested macros, we don't need to be + * more specific than this. + */ + if (mt->fl & MANT_LITERAL && + ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) && + (n->next == NULL || n->next->flags & MAN_LINE)) { + rm = p->rmargin; + rmax = p->maxrmargin; + p->rmargin = p->maxrmargin = TERM_MAXMARGIN; + p->flags |= TERMP_NOSPACE; + if (n->string != NULL && *n->string != '\0') + term_flushln(p); + else + term_newln(p); + if (rm < rmax && n->parent->tok == MAN_HP) { + p->offset = rm; + p->rmargin = rmax; + } else + p->rmargin = rm; + p->maxrmargin = rmax; + } if (MAN_EOS & n->flags) p->flags |= TERMP_SENTENCE; } @@ -927,120 +1004,150 @@ static void print_man_nodelist(DECL_ARGS) { - print_man_node(p, mt, n, m); - if ( ! n->next) - return; - print_man_nodelist(p, mt, n->next, m); + while (n != NULL) { + print_man_node(p, mt, n, meta); + n = n->next; + } } - static void print_man_foot(struct termp *p, const void *arg) { - char buf[DATESIZ]; - const struct man_meta *meta; + const struct man_meta *meta; + char *title; + size_t datelen, titlen; meta = (const struct man_meta *)arg; + assert(meta->title); + assert(meta->msec); + assert(meta->date); term_fontrepl(p, TERMFONT_NONE); - if (meta->rawdate) - strlcpy(buf, meta->rawdate, DATESIZ); - else - time2a(meta->date, buf, DATESIZ); + if (meta->hasbody) + term_vspace(p); - term_vspace(p); - term_vspace(p); - term_vspace(p); + /* + * Temporary, undocumented option to imitate mdoc(7) output. + * In the bottom right corner, use the source instead of + * the title. + */ + if ( ! p->mdocstyle) { + if (meta->hasbody) { + term_vspace(p); + term_vspace(p); + } + mandoc_asprintf(&title, "%s(%s)", + meta->title, meta->msec); + } else if (meta->source) { + title = mandoc_strdup(meta->source); + } else { + title = mandoc_strdup(""); + } + datelen = term_strlen(p, meta->date); + + /* Bottom left corner: manual source. */ + p->flags |= TERMP_NOSPACE | TERMP_NOBREAK; - p->rmargin = p->maxrmargin - term_strlen(p, buf); + p->trailspace = 1; p->offset = 0; + p->rmargin = p->maxrmargin > datelen ? + (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0; - /* term_strlen() can return zero. */ - if (p->rmargin == p->maxrmargin) - p->rmargin--; - if (meta->source) term_word(p, meta->source); - if (meta->source) - term_word(p, ""); term_flushln(p); - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; + /* At the bottom in the middle: manual date. */ + p->offset = p->rmargin; - p->rmargin = p->maxrmargin; + titlen = term_strlen(p, title); + p->rmargin = p->maxrmargin > titlen ? p->maxrmargin - titlen : 0; + p->flags |= TERMP_NOSPACE; + + term_word(p, meta->date); + term_flushln(p); + + /* Bottom right corner: manual title and section. */ + p->flags &= ~TERMP_NOBREAK; + p->flags |= TERMP_NOSPACE; + p->trailspace = 0; + p->offset = p->rmargin; + p->rmargin = p->maxrmargin; - term_word(p, buf); + term_word(p, title); term_flushln(p); + free(title); } - static void print_man_head(struct termp *p, const void *arg) { - char buf[BUFSIZ], title[BUFSIZ]; - size_t buflen, titlen; - const struct man_meta *m; + const struct man_meta *meta; + const char *volume; + char *title; + size_t vollen, titlen; - m = (const struct man_meta *)arg; + meta = (const struct man_meta *)arg; + assert(meta->title); + assert(meta->msec); - /* - * Note that old groff would spit out some spaces before the - * header. We discontinue this strange behaviour, but at one - * point we did so here. - */ + volume = NULL == meta->vol ? "" : meta->vol; + vollen = term_strlen(p, volume); - p->rmargin = p->maxrmargin; + /* Top left corner: manual title and section. */ - p->offset = 0; - buf[0] = title[0] = '\0'; - - if (m->vol) - strlcpy(buf, m->vol, BUFSIZ); - buflen = term_strlen(p, buf); - - snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec); + mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec); titlen = term_strlen(p, title); - p->offset = 0; - p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ? - (p->maxrmargin - - term_strlen(p, buf) + term_len(p, 1)) / 2 : - p->maxrmargin - buflen; p->flags |= TERMP_NOBREAK | TERMP_NOSPACE; + p->trailspace = 1; + p->offset = 0; + p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ? + (p->maxrmargin - vollen + term_len(p, 1)) / 2 : + vollen < p->maxrmargin ? p->maxrmargin - vollen : 0; term_word(p, title); term_flushln(p); - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; + /* At the top in the middle: manual volume. */ + + p->flags |= TERMP_NOSPACE; p->offset = p->rmargin; - p->rmargin = p->offset + buflen + titlen < p->maxrmargin ? + p->rmargin = p->offset + vollen + titlen < p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin; - term_word(p, buf); + term_word(p, volume); term_flushln(p); + /* Top right corner: title and section, again. */ + p->flags &= ~TERMP_NOBREAK; + p->trailspace = 0; if (p->rmargin + titlen <= p->maxrmargin) { - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; + p->flags |= TERMP_NOSPACE; p->offset = p->rmargin; p->rmargin = p->maxrmargin; term_word(p, title); term_flushln(p); } - p->rmargin = p->maxrmargin; - p->offset = 0; p->flags &= ~TERMP_NOSPACE; + p->offset = 0; + p->rmargin = p->maxrmargin; - /* - * Groff likes to have some leading spaces before content. Well - * that's fine by me. + /* + * Groff prints three blank lines before the content. + * Do the same, except in the temporary, undocumented + * mode imitating mdoc(7) output. */ term_vspace(p); - term_vspace(p); - term_vspace(p); + if ( ! p->mdocstyle) { + term_vspace(p); + term_vspace(p); + } + free(title); }