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/*----------------------------------------------------------------------
Compiler Generator Coco/R,
Copyright (c) 1990, 2004 Hanspeter Moessenboeck, University of Linz
extended by M. Loeberbauer & A. Woess, Univ. of Linz
ported to C++ by Csaba Balazs, University of Szeged
with improvements by Pat Terry, Rhodes University
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
As an exception, it is allowed to write an extension of Coco/R that is
used as a plugin in non-free software.
If not otherwise stated, any source code generated by Coco/R (other than
Coco/R itself) does not fall under the GNU General Public License.
-----------------------------------------------------------------------*/
#include "Generator.h"
#include "Scanner.h"
namespace Coco {
Generator::Generator(Tab *tab, Errors *errors) {
this->errors = errors;
this->tab = tab;
fram = NULL;
gen = NULL;
frameFile = NULL;
}
FILE* Generator::OpenFrame(const wchar_t* frame) {
if (coco_string_length(tab->frameDir) != 0) {
frameFile = coco_string_create_append(tab->frameDir, L"/");
coco_string_merge(frameFile, frame);
char *chFrameFile = coco_string_create_char(frameFile);
fram = fopen(chFrameFile, "r");
delete [] chFrameFile;
}
if (fram == NULL) {
delete [] frameFile;
frameFile = coco_string_create_append(tab->srcDir, frame); /* pdt */
char *chFrameFile = coco_string_create_char(frameFile);
fram = fopen(chFrameFile, "r");
delete [] chFrameFile;
}
if (fram == NULL) {
wchar_t *message = coco_string_create_append(L"-- Cannot find : ", frame);
errors->Exception(message);
delete [] message;
}
return fram;
}
FILE* Generator::OpenGen(const wchar_t *genName) { /* pdt */
wchar_t *fn = coco_string_create_append(tab->outDir, genName); /* pdt */
char *chFn = coco_string_create_char(fn);
if ((gen = fopen(chFn, "r")) != NULL) {
fclose(gen);
wchar_t *oldName = coco_string_create_append(fn, L".old");
char *chOldName = coco_string_create_char(oldName);
remove(chOldName); rename(chFn, chOldName); // copy with overwrite
coco_string_delete(chOldName);
coco_string_delete(oldName);
}
if ((gen = fopen(chFn, "w")) == NULL) {
wchar_t *message = coco_string_create_append(L"-- Cannot generate : ", genName);
errors->Exception(message);
delete [] message;
}
coco_string_delete(chFn);
coco_string_delete(fn);
return gen;
}
void Generator::GenCopyright() {
FILE *file = NULL;
if (coco_string_length(tab->frameDir) != 0) {
wchar_t *copyFr = coco_string_create_append(tab->frameDir, L"/Copyright.frame");
char *chCopyFr = coco_string_create_char(copyFr);
file = fopen(chCopyFr, "r");
delete [] copyFr;
delete [] chCopyFr;
}
if (file == NULL) {
wchar_t *copyFr = coco_string_create_append(tab->srcDir, L"Copyright.frame");
char *chCopyFr = coco_string_create_char(copyFr);
file = fopen(chCopyFr, "r");
delete [] copyFr;
delete [] chCopyFr;
}
if (file == NULL) {
return;
}
FILE *scannerFram = fram;
fram = file;
CopyFramePart(NULL);
fram = scannerFram;
fclose(file);
}
void Generator::GenPrefixFromNamespace() {
const wchar_t *nsName = tab->nsName;
if (nsName == NULL || coco_string_length(nsName) == 0) {
return;
}
const int len = coco_string_length(nsName);
int startPos = 0;
do {
int curLen = coco_string_indexof(nsName + startPos, COCO_CPP_NAMESPACE_SEPARATOR);
if (curLen == -1) { curLen = len - startPos; }
wchar_t *curNs = coco_string_create(nsName, startPos, curLen);
fwprintf(gen, L"%ls_", curNs);
coco_string_delete(curNs);
startPos = startPos + curLen + 1;
} while (startPos < len);
}
void Generator::SkipFramePart(const wchar_t *stop) {
CopyFramePart(stop, false);
}
void Generator::CopyFramePart(const wchar_t *stop) {
CopyFramePart(stop, true);
}
void Generator::CopyFramePart(const wchar_t* stop, bool generateOutput) {
wchar_t startCh = 0;
int endOfStopString = 0;
wchar_t ch = 0;
if (stop != NULL) {
startCh = stop[0];
endOfStopString = coco_string_length(stop)-1;
}
fwscanf(fram, L"%lc", &ch); // fram.ReadByte();
while (!feof(fram)) { // ch != EOF
if (stop != NULL && ch == startCh) {
int i = 0;
do {
if (i == endOfStopString) return; // stop[0..i] found
fwscanf(fram, L"%lc", &ch); i++;
} while (ch == stop[i]);
// stop[0..i-1] found; continue with last read character
if (generateOutput) {
wchar_t *subStop = coco_string_create(stop, 0, i);
fwprintf(gen, L"%ls", subStop);
coco_string_delete(subStop);
}
} else {
if (generateOutput) { fwprintf(gen, L"%lc", ch); }
fwscanf(fram, L"%lc", &ch);
}
}
if (stop != NULL) {
wchar_t *message = coco_string_create_append(L" -- Incomplete or corrupt frame file: ", frameFile);
errors->Exception(message);
delete [] message;
}
}
}
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