version 1.32, 2020/04/03 10:30:09 |
version 1.33, 2020/04/07 22:56:02 |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "mandoc_ohash.h" |
#include "mandoc_ohash.h" |
#include "roff.h" |
#include "roff.h" |
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#include "mdoc.h" |
#include "tag.h" |
#include "tag.h" |
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struct tag_entry { |
struct tag_entry { |
Line 41 struct tag_entry { |
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Line 42 struct tag_entry { |
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char s[]; |
char s[]; |
}; |
}; |
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static void tag_move_id(struct roff_node *); |
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static struct ohash tag_data; |
static struct ohash tag_data; |
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tag_exists(const char *tag) |
tag_exists(const char *tag) |
{ |
{ |
return ohash_find(&tag_data, ohash_qlookup(&tag_data, tag)) != NULL; |
return ohash_find(&tag_data, ohash_qlookup(&tag_data, tag)) != NULL; |
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} |
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/* |
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* For in-line elements, move the link target |
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* to the enclosing paragraph when appropriate. |
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*/ |
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static void |
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tag_move_id(struct roff_node *n) |
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{ |
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struct roff_node *np; |
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np = n; |
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for (;;) { |
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if (np->prev != NULL) |
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np = np->prev; |
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else if ((np = np->parent) == NULL) |
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return; |
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switch (np->tok) { |
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case MDOC_It: |
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switch (np->parent->parent->norm->Bl.type) { |
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case LIST_column: |
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/* Target the ROFFT_BLOCK = <tr>. */ |
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np = np->parent; |
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break; |
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case LIST_diag: |
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case LIST_hang: |
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case LIST_inset: |
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case LIST_ohang: |
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case LIST_tag: |
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/* Target the ROFFT_HEAD = <dt>. */ |
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np = np->parent->head; |
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break; |
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default: |
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/* Target the ROFF_BODY = <li>. */ |
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break; |
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} |
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/* FALLTHROUGH */ |
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case MDOC_Pp: /* Target the ROFFT_ELEM = <p>. */ |
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if (np->string == NULL) { |
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np->string = mandoc_strdup(n->string == NULL ? |
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n->child->string : n->string); |
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np->flags |= NODE_ID; |
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n->flags &= ~NODE_ID; |
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} |
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return; |
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case MDOC_Sh: |
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case MDOC_Ss: |
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case MDOC_Bd: |
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case MDOC_Bl: |
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case MDOC_D1: |
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case MDOC_Dl: |
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case MDOC_Rs: |
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/* Do not move past major blocks. */ |
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return; |
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default: |
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/* |
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* Move past in-line content and partial |
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* blocks, for example .It Xo or .It Bq Er. |
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*/ |
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break; |
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} |
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} |
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} |
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/* |
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* When all tags have been set, decide where to put |
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* the associated permalinks, and maybe move some tags |
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* to the beginning of the respective paragraphs. |
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*/ |
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void |
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tag_postprocess(struct roff_node *n) |
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{ |
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if (n->flags & NODE_ID) { |
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switch (n->tok) { |
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case MDOC_Bd: |
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case MDOC_Bl: |
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case MDOC_Pp: |
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/* XXX No permalink for now. */ |
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break; |
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default: |
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if (n->type == ROFFT_ELEM || n->tok == MDOC_Fo) |
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tag_move_id(n); |
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if (n->tok != MDOC_Tg) |
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n->flags |= NODE_HREF; |
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else if ((n->flags & NODE_ID) == 0) |
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n->flags |= NODE_NOPRT; |
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break; |
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} |
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} |
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for (n = n->child; n != NULL; n = n->next) |
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tag_postprocess(n); |
} |
} |