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frodo |
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/* |
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parse_texted.c - Part of psiconv, a PSION 5 file formats converter |
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frodo |
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Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
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frodo |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include "config.h" |
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frodo |
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#include "compat.h" |
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frodo |
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#include <stdlib.h> |
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#include "parse_routines.h" |
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frodo |
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#include "error.h" |
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frodo |
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frodo |
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#ifdef DMALLOC |
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#include <dmalloc.h> |
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#endif |
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frodo |
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int psiconv_parse_texted_section(const psiconv_buffer buf,int lev, |
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psiconv_u32 off, int *length, |
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psiconv_texted_section *result, |
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psiconv_character_layout base_char, |
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psiconv_paragraph_layout base_para) |
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{ |
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int res = 0; |
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int len = 0; |
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psiconv_u32 layout_sec = 0; |
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psiconv_u32 unknown_sec = 0; |
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psiconv_u32 replacement_sec = 0; |
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psiconv_u32 temp; |
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int leng; |
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psiconv_progress(lev+1,off,"Going to read a texted section"); |
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frodo |
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if (!((*result) = malloc(sizeof(**result)))) |
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goto ERROR1; |
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frodo |
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psiconv_progress(lev+2,off+len,"Going to read section id"); |
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frodo |
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temp = psiconv_read_u32(buf,lev+2,off+len,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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if (temp != PSICONV_ID_TEXTED_BODY) { |
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psiconv_warn(lev+2,off+len, |
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"Page header section body id not found"); |
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psiconv_debug(lev+2,off+len, |
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"Page body id: read %08x, expected %08x",temp, |
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PSICONV_ID_TEXTED); |
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frodo |
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res = -PSICONV_E_PARSE; |
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goto ERROR2; |
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frodo |
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} |
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len += 4; |
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psiconv_progress(lev+2,off+len,"Going to read the section jumptable"); |
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frodo |
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while (temp = psiconv_read_u32(buf,lev+3,off+len,&res), |
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!res && temp != PSICONV_ID_TEXTED_TEXT) { |
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frodo |
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len += 4; |
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if (temp == PSICONV_ID_TEXTED_LAYOUT) { |
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frodo |
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layout_sec = psiconv_read_u32(buf,lev+3,off+len,&res); |
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if (res) |
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goto ERROR2; |
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psiconv_debug(lev+3,off+len,"Found Layout section at %08x",layout_sec); |
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} else if (temp == PSICONV_ID_TEXTED_REPLACEMENT) { |
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frodo |
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replacement_sec = psiconv_read_u32(buf,lev+3,off+len,&res); |
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if (res) |
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goto ERROR2; |
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psiconv_debug(lev+3,off+len,"Found Replacement section at %08x", |
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replacement_sec); |
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} else if (temp == PSICONV_ID_TEXTED_UNKNOWN) { |
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frodo |
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unknown_sec= psiconv_read_u32(buf,lev+3,off+len,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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if (unknown_sec) { |
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psiconv_warn(lev+3,off+len, |
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"Unknown section in TextEd jumptable has real offset (ignoring)"); |
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frodo |
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} |
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psiconv_debug(lev+3,off+len,"Found Unknown section at %08x", |
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unknown_sec); |
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} else { |
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frodo |
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psiconv_warn(lev+3,off+len, |
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"Unknown section in TextEd jumptable (ignoring)"); |
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frodo |
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psiconv_debug(lev+3,off+len,"Section ID %08x at offset %08x",temp, |
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frodo |
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psiconv_read_u32(buf,lev+3,off+len,NULL)); |
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frodo |
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} |
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len += 4; |
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} |
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frodo |
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if (res) |
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goto ERROR2; |
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frodo |
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len += 4; |
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psiconv_progress(lev+2,off+len,"Going to read the text"); |
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frodo |
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if ((res = psiconv_parse_text_section(buf,lev+2,off+len,&leng, |
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&(*result)->paragraphs))) |
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goto ERROR2; |
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frodo |
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len += leng; |
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if (layout_sec) { |
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psiconv_progress(lev+2,off+len,"Going to read the layout"); |
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frodo |
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if ((res = psiconv_parse_styleless_layout_section(buf,lev+2,layout_sec,NULL, |
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frodo |
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(*result)->paragraphs, |
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frodo |
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base_char,base_para))) |
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goto ERROR3; |
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frodo |
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} |
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#if 0 |
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if (replacement_sec) { |
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psiconv_progress(lev+2,off+len,"Going to read the replacements"); |
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/* WHATEVER */ |
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} |
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#endif |
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if (length) |
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*length = len; |
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psiconv_progress(lev+1,off+len-1,"End of TextEd section " |
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"(total length: %08x", len); |
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frodo |
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return 0; |
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ERROR3: |
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psiconv_free_text_and_layout((*result)->paragraphs); |
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ERROR2: |
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free (*result); |
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ERROR1: |
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psiconv_warn(lev+1,off,"Reading of TextEd Section failed"); |
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if (length) |
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*length = 0; |
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if (!res) |
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return -PSICONV_E_NOMEM; |
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else |
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return res; |
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frodo |
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} |
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