=================================================================== RCS file: /cvs/docbook2mdoc/macro.c,v retrieving revision 1.1 retrieving revision 1.5 diff -u -p -r1.1 -r1.5 --- docbook2mdoc/macro.c 2019/03/26 19:17:29 1.1 +++ docbook2mdoc/macro.c 2019/04/03 15:04:03 1.5 @@ -1,4 +1,4 @@ -/* $Id: macro.c,v 1.1 2019/03/26 19:17:29 schwarze Exp $ */ +/* $Id: macro.c,v 1.5 2019/04/03 15:04:03 schwarze Exp $ */ /* * Copyright (c) 2019 Ingo Schwarze * @@ -47,7 +47,8 @@ macro_open(struct format *f, const char *name) void macro_close(struct format *f) { - assert(f->linestate == LINE_MACRO); + if (f->linestate == LINE_NEW) + return; putchar('\n'); f->linestate = LINE_NEW; } @@ -152,18 +153,21 @@ macro_argline(struct format *f, const char *name, cons void macro_addnode(struct format *f, struct pnode *pn, int flags) { + struct pnode *nc; int quote_now; assert(f->linestate == LINE_MACRO); /* - * If the only child is a text node, just add that text, - * letting macro_addarg() decide about quoting. + * If this node or its only child is a text node, just add + * that text, letting macro_addarg() decide about quoting. */ - pn = TAILQ_FIRST(&pn->childq); - if (pn != NULL && pn->node == NODE_TEXT && - TAILQ_NEXT(pn, child) == NULL) { + while ((nc = TAILQ_FIRST(&pn->childq)) != NULL && + TAILQ_NEXT(nc, child) == NULL) + pn = nc; + + if (pn->node == NODE_TEXT || pn->node == NODE_ESCAPE) { macro_addarg(f, pn->b, flags); return; } @@ -192,12 +196,9 @@ macro_addnode(struct format *f, struct pnode *pn, int * inserting whitespace between nodes. */ - while (pn != NULL) { - if (pn->node == NODE_TEXT) - macro_addarg(f, pn->b, flags); - else - macro_addnode(f, pn, flags); - pn = TAILQ_NEXT(pn, child); + while (nc != NULL) { + macro_addnode(f, nc, flags); + nc = TAILQ_NEXT(nc, child); flags |= ARG_SPACE; } if (quote_now) @@ -210,4 +211,41 @@ macro_nodeline(struct format *f, const char *name, str macro_open(f, name); macro_addnode(f, pn, ARG_SPACE | flags); macro_close(f); +} + + +/* + * Print a word on the current text line if one is open, or on a new text + * line otherwise. The flag ARG_SPACE inserts spaces between words. + */ +void +print_text(struct format *f, const char *word, int flags) { + switch (f->linestate) { + case LINE_NEW: + break; + case LINE_TEXT: + if (flags & ARG_SPACE) + putchar(' '); + break; + case LINE_MACRO: + macro_close(f); + break; + } + fputs(word, stdout); + f->linestate = LINE_TEXT; +} + +/* + * Recursively print the content of a node on a text line. + */ +void +print_textnode(struct format *f, struct pnode *n) +{ + struct pnode *nc; + + if (n->node == NODE_TEXT || n->node == NODE_ESCAPE) + print_text(f, n->b, ARG_SPACE); + else + TAILQ_FOREACH(nc, &n->childq, child) + print_textnode(f, nc); }