diff options
Diffstat (limited to 'extract/src/html.c')
| -rw-r--r-- | extract/src/html.c | 228 |
1 files changed, 145 insertions, 83 deletions
diff --git a/extract/src/html.c b/extract/src/html.c index d12a3101..de204881 100644 --- a/extract/src/html.c +++ b/extract/src/html.c @@ -51,7 +51,7 @@ static int content_state_reset(extract_alloc_t* alloc, content_state_t* content_ content_state->font.italic = 0; } e = 0; - + end: return e; } @@ -110,9 +110,9 @@ static int paragraph_to_html_content( } } if (extract_astring_catf(alloc, content, "%s</p>", endl)) goto end; - + e = 0; - + end: return e; } @@ -136,10 +136,10 @@ etc. */ paragraph_t* paragraph = paragraphs[p]; if (paragraph_to_html_content(alloc, state, paragraph, single_line, content)) goto end; } - + if (content_state_reset(alloc, state, content)) goto end; e = 0; - + end: return e; } @@ -148,19 +148,14 @@ static int append_table(extract_alloc_t* alloc, content_state_t* state, table_t* { int e = -1; int y; - + if (extract_astring_cat(alloc, content, "\n\n<table border=\"1\" style=\"border-collapse:collapse\">\n")) goto end; - + for (y=0; y<table->cells_num_y; ++y) { /* If 1, we put each <td>...</td> on a separate line. */ - int multiline = 0; int x; if (extract_astring_cat(alloc, content, " <tr>\n")) goto end; - if (!multiline) - { - if (extract_astring_cat(alloc, content, " ")) goto end; - } for (x=0; x<table->cells_num_x; ++x) { cell_t* cell = table->cells[y*table->cells_num_x + x]; @@ -172,7 +167,7 @@ static int append_table(extract_alloc_t* alloc, content_state_t* state, table_t* } if (extract_astring_cat(alloc, content, " ")) goto end; if (extract_astring_cat(alloc, content, "<td")) goto end; - + if (cell->extend_right > 1) { if (extract_astring_catf(alloc, content, " colspan=\"%i\"", cell->extend_right)) goto end; @@ -181,7 +176,7 @@ static int append_table(extract_alloc_t* alloc, content_state_t* state, table_t* { if (extract_astring_catf(alloc, content, " rowspan=\"%i\"", cell->extend_down)) goto end; } - + if (extract_astring_cat(alloc, content, ">")) goto end; if (paragraphs_to_html_content(alloc, state, cell->paragraphs, cell->paragraphs_num, 1 /* single_line*/, content)) goto end; @@ -190,15 +185,11 @@ static int append_table(extract_alloc_t* alloc, content_state_t* state, table_t* if (content_state_reset(alloc, state, content)) goto end; } - if (!multiline) - { - if (extract_astring_cat(alloc, content, "\n")) goto end; - } if (extract_astring_cat(alloc, content, " </tr>\n")) goto end; } if (extract_astring_cat(alloc, content, "</table>\n\n")) goto end; e = 0; - + end: return e; } @@ -222,6 +213,126 @@ static int compare_paragraph_y(const void* a, const void* b) return 0; } +/* +*/ +static int +split_to_html(extract_alloc_t *alloc, split_t* split, subpage_t*** ppsubpage, extract_astring_t *output) +{ + int p; + int s; + int t; + subpage_t* subpage; + paragraph_t** paragraphs = NULL; + content_state_t state; + content_state_init(&state); + + if (split == NULL) { + /* fall through to below - SPLIT_NONE */ + } else if (split->type == SPLIT_HORIZONTAL) { + int ret = 0; + double total = 0; + for (s = 0; s < split->count; s++) { + total += split->split[s]->weight; + } + if (split->count > 1) + extract_astring_cat(alloc, output, "<div style=\"display:flex;\">\n"); + for (s = 0; s < split->count; s++) { + if (split->count > 1) + { + if (total == 0) + { + extract_astring_catf(alloc, output, "<div>\n"); + } + else + { + extract_astring_catf(alloc, output, "<div style=\"width:%g%%;\">\n", 100.0*split->split[s]->weight/total); + } + } + ret = split_to_html(alloc, split->split[s], ppsubpage, output); + if (ret) + break; + if (split->count > 1) + extract_astring_cat(alloc, output, "</div>\n"); + } + if (split->count > 1) + extract_astring_cat(alloc, output, "</div>\n"); + return ret; + } else if (split->type == SPLIT_VERTICAL) { + int ret = 0; + for (s = 0; s < split->count; s++) { + ret = split_to_html(alloc, split->split[s], ppsubpage, output); + if (ret) + break; + } + return ret; + } + + /* We'll deal with the next subpage entry. Increment the pointer for the + * next caller. */ + subpage = **ppsubpage; + *ppsubpage = (*ppsubpage)+1; + + /* Output paragraphs and tables in order of increasing <y> coordinate. + + Unfortunately the paragraph ordering we do in page->paragraphs[] + isn't quite right and results in bad ordering if ctm/trm matrices are + inconsistent. So we create our own list of paragraphs sorted strictly + by y coordinate of the first char of each paragraph. */ + if (extract_malloc(alloc, ¶graphs, sizeof(*paragraphs) * subpage->paragraphs_num)) goto end; + for (p = 0; p < subpage->paragraphs_num; ++p) + { + paragraphs[p] = subpage->paragraphs[p]; + } + qsort(paragraphs, subpage->paragraphs_num, sizeof(*paragraphs), compare_paragraph_y); + + if (0) + { + int p; + outf0("paragraphs are:"); + for (p=0; p<subpage->paragraphs_num; ++p) + { + paragraph_t* paragraph = subpage->paragraphs[p]; + line_t* line = paragraph->lines[0]; + span_t* span = line->spans[0]; + outf0(" p=%i: %s", p, extract_span_string(NULL, span)); + } + } + + p = 0; + t = 0; + for(;;) + { + double y_paragraph; + double y_table; + paragraph_t* paragraph = (p == subpage->paragraphs_num) ? NULL : paragraphs[p]; + table_t* table = (t == subpage->tables_num) ? NULL : subpage->tables[t]; + if (!paragraph && !table) break; + y_paragraph = (paragraph) ? paragraph->lines[0]->spans[0]->chars[0].y : DBL_MAX; + y_table = (table) ? table->pos.y : DBL_MAX; + outf("p=%i y_paragraph=%f", p, y_paragraph); + outf("t=%i y_table=%f", t, y_table); + if (paragraph && y_paragraph < y_table) + { + //extract_astring_catf(alloc, output, "<p>@@@ paragraph %i y=%f @@@)</p>\n", p, y_paragraph); + if (paragraph_to_html_content(alloc, &state, paragraph, 0 /*single_line*/, output)) goto end; + if (content_state_reset(alloc, &state, output)) goto end; + p += 1; + } + else if (table) + { + //extract_astring_catf(alloc, output, "<p>@@@ table %t y=%f @@@)</p>\n", p, y_table); + if (append_table(alloc, &state, table, output)) goto end; + t += 1; + } + } + extract_free(alloc, ¶graphs); + return 0; + +end: + extract_free(alloc, ¶graphs); + return -1; +} + int extract_document_to_html_content( extract_alloc_t* alloc, document_t* document, @@ -231,84 +342,35 @@ int extract_document_to_html_content( ) { int ret = -1; - int p; + int n; paragraph_t** paragraphs = NULL; - + (void) rotation; (void) images; - + extract_astring_cat(alloc, content, "<html>\n"); extract_astring_cat(alloc, content, "<body>\n"); - + /* Write paragraphs into <content>. */ - for (p=0; p<document->pages_num; ++p) + for (n=0; n<document->pages_num; ++n) { - extract_page_t* page = document->pages[p]; - int p; - int t; - content_state_t state; - content_state_init(&state); - extract_free(alloc, ¶graphs); - - /* Output paragraphs and tables in order of increasing <y> coordinate. + extract_page_t* page = document->pages[n]; + subpage_t **psubpage = page->subpages; - Unfortunately the paragraph ordering we do in page->paragraphs[] - isn't quite right and results in bad ordering if ctm/trm matrices are - inconsistent. So we create our own list of paragraphs sorted strictly - by y coordinate of the first char of each paragraph. */ - if (extract_malloc(alloc, ¶graphs, sizeof(*paragraphs) * page->paragraphs_num)) goto end; - for (p = 0; p < page->paragraphs_num; ++p) - { - paragraphs[p] = page->paragraphs[p]; - } - qsort(paragraphs, page->paragraphs_num, sizeof(*paragraphs), compare_paragraph_y); - - if (0) - { - int p; - outf0("paragraphs are:"); - for (p=0; p<page->paragraphs_num; ++p) - { - paragraph_t* paragraph = page->paragraphs[p]; - line_t* line = paragraph->lines[0]; - span_t* span = line->spans[0]; - outf0(" p=%i: %s", p, extract_span_string(NULL, span)); - } - } + /* Every page gets its own div. */ + extract_astring_cat(alloc, content, "<div>\n"); - p = 0; - t = 0; - for(;;) - { - double y_paragraph; - double y_table; - paragraph_t* paragraph = (p == page->paragraphs_num) ? NULL : paragraphs[p]; - table_t* table = (t == page->tables_num) ? NULL : page->tables[t]; - if (!paragraph && !table) break; - y_paragraph = (paragraph) ? paragraph->lines[0]->spans[0]->chars[0].y : DBL_MAX; - y_table = (table) ? table->pos.y : DBL_MAX; - outf("p=%i y_paragraph=%f", p, y_paragraph); - outf("t=%i y_table=%f", t, y_table); - if (paragraph && y_paragraph < y_table) - { - //extract_astring_catf(alloc, content, "<p>@@@ paragraph %i y=%f @@@)</p>\n", p, y_paragraph); - if (paragraph_to_html_content(alloc, &state, paragraph, 0 /*single_line*/, content)) goto end; - if (content_state_reset(alloc, &state, content)) goto end; - p += 1; - } - else if (table) - { - //extract_astring_catf(alloc, content, "<p>@@@ table %t y=%f @@@)</p>\n", p, y_table); - if (append_table(alloc, &state, table, content)) goto end; - t += 1; - } - } + ret = split_to_html(alloc, page->split, &psubpage, content); + if (ret) + goto end; + + extract_astring_cat(alloc, content, "</div>\n"); } extract_astring_cat(alloc, content, "</body>\n"); extract_astring_cat(alloc, content, "</html>\n"); ret = 0; - end: +end: extract_free(alloc, ¶graphs); return ret; } |