diff options
Diffstat (limited to 'src/frame.c')
| -rw-r--r-- | src/frame.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/frame.c b/src/frame.c index fb849a4..32de26e 100644 --- a/src/frame.c +++ b/src/frame.c @@ -861,6 +861,60 @@ static __attribute__((unused)) void show_para(Paragraph *p) } +void merge_paragraphs(struct frame *fr, int para) +{ + Paragraph *p1, *p2; + struct text_run *runs_new; + int i; + size_t len; + SCBlock *scblock; + + if ( para >= fr->n_paras-1 ) { + printf("Paragraph number too high to merge.\n"); + return; + } + + p1 = fr->paras[para]; + p2 = fr->paras[para+1]; + show_para(p1); + show_para(p2); + + if ( (p1->type != PARA_TYPE_TEXT) || (p2->type != PARA_TYPE_TEXT) ) { + printf("Trying to merge non-text paragraphs.\n"); + return; + } + + /* All the runs from p2 get added to p1 */ + runs_new = realloc(p1->runs, + (p1->n_runs+p2->n_runs)*sizeof(struct text_run)); + if ( runs_new == NULL ) { + fprintf(stderr, "Failed to allocate merged runs.\n"); + return; + } + p1->runs = runs_new; + + /* Take off the newline at the end of the last run */ + scblock = p1->runs[p1->n_runs-1].scblock; + len = p1->runs[p1->n_runs-1].len_bytes--; + if ( sc_block_contents(scblock)[len+1] != '\n' ) { + fprintf(stderr, "Whoops, not a newline!\n"); + } + scblock_delete_text(scblock, len+1, len+2); + + for ( i=0; i<p2->n_runs; i++ ) { + p1->runs[p1->n_runs++] = p2->runs[i]; + } + free(p2->runs); + free(p2); + show_para(p1); + + for ( i=para+1; i<fr->n_paras-1; i++ ) { + fr->paras[i] = fr->paras[i+1]; + } + fr->n_paras--; +} + + static char *s_strdup(const char *a) { if ( a == NULL ) return NULL; |