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/*
* Copyright 2006 Adrian Thurston <thurston@cs.queensu.ca>
*/
/* This file is part of Ragel.
*
* Ragel 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 of the License, or
* (at your option) any later version.
*
* Ragel 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 Ragel; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "common.h"
HostType hostTypesC[] =
{
{ "char", 0, true, CHAR_MIN, CHAR_MAX, sizeof(char) },
{ "unsigned", "char", false, 0, UCHAR_MAX, sizeof(unsigned char) },
{ "short", 0, true, SHRT_MIN, SHRT_MAX, sizeof(short) },
{ "unsigned", "short", false, 0, USHRT_MAX, sizeof(unsigned short) },
{ "int", 0, true, INT_MIN, INT_MAX, sizeof(int) },
{ "unsigned", "int", false, 0, UINT_MAX, sizeof(unsigned int) },
{ "long", 0, true, LONG_MIN, LONG_MAX, sizeof(long) },
{ "unsigned", "long", false, 0, ULONG_MAX, sizeof(unsigned long) }
};
HostType hostTypesD[] =
{
{ "byte", 0, true, CHAR_MIN, CHAR_MAX, 1 },
{ "ubyte", 0, false, 0, UCHAR_MAX, 1 },
{ "char", 0, false, 0, UCHAR_MAX, 1 },
{ "short", 0, true, SHRT_MIN, SHRT_MAX, 2 },
{ "ushort", 0, false, 0, USHRT_MAX, 2 },
{ "wchar", 0, false, 0, USHRT_MAX, 2 },
{ "int", 0, true, INT_MIN, INT_MAX, 4 },
{ "uint", 0, false, 0, UINT_MAX, 4 },
{ "dchar", 0, false, 0, UINT_MAX, 4 }
};
HostType hostTypesJava[] =
{
{ "byte", 0, true, CHAR_MIN, CHAR_MAX, 1 },
{ "short", 0, true, SHRT_MIN, SHRT_MAX, 2 },
{ "char", 0, false, 0, USHRT_MAX, 2 },
{ "int", 0, true, INT_MIN, INT_MAX, 4 },
};
HostLang hostLangC = { hostTypesC, 8, hostTypesC+0, true };
HostLang hostLangD = { hostTypesD, 9, hostTypesD+2, true };
HostLang hostLangJava = { hostTypesJava, 4, hostTypesJava+2, false };
HostLang *hostLang = &hostLangC;
HostLangType hostLangType = CCode;
/* Construct a new parameter checker with for paramSpec. */
ParamCheck::ParamCheck(char *paramSpec, int argc, char **argv)
:
state(noparam),
argOffset(0),
curArg(0),
iCurArg(1),
paramSpec(paramSpec),
argc(argc),
argv(argv)
{
}
/* Check a single option. Returns the index of the next parameter. Sets p to
* the arg character if valid, 0 otherwise. Sets parg to the parameter arg if
* there is one, NULL otherwise. */
bool ParamCheck::check()
{
bool requiresParam;
if ( iCurArg >= argc ) { /* Off the end of the arg list. */
state = noparam;
return false;
}
if ( argOffset != 0 && *argOffset == 0 ) {
/* We are at the end of an arg string. */
iCurArg += 1;
if ( iCurArg >= argc ) {
state = noparam;
return false;
}
argOffset = 0;
}
if ( argOffset == 0 ) {
/* Set the current arg. */
curArg = argv[iCurArg];
/* We are at the beginning of an arg string. */
if ( argv[iCurArg] == 0 || /* Argv[iCurArg] is null. */
argv[iCurArg][0] != '-' || /* Not a param. */
argv[iCurArg][1] == 0 ) { /* Only a dash. */
parameter = 0;
parameterArg = 0;
iCurArg += 1;
state = noparam;
return true;
}
argOffset = argv[iCurArg] + 1;
}
/* Get the arg char. */
char argChar = *argOffset;
/* Loop over all the parms and look for a match. */
char *pSpec = paramSpec;
while ( *pSpec != 0 ) {
char pSpecChar = *pSpec;
/* If there is a ':' following the char then
* it requires a parm. If a parm is required
* then move ahead two in the parmspec. Otherwise
* move ahead one in the parm spec. */
if ( pSpec[1] == ':' ) {
requiresParam = true;
pSpec += 2;
}
else {
requiresParam = false;
pSpec += 1;
}
/* Do we have a match. */
if ( argChar == pSpecChar ) {
if ( requiresParam ) {
if ( argOffset[1] == 0 ) {
/* The param must follow. */
if ( iCurArg + 1 == argc ) {
/* We are the last arg so there
* cannot be a parameter to it. */
parameter = argChar;
parameterArg = 0;
iCurArg += 1;
argOffset = 0;
state = invalid;
return true;
}
else {
/* the parameter to the arg is the next arg. */
parameter = pSpecChar;
parameterArg = argv[iCurArg + 1];
iCurArg += 2;
argOffset = 0;
state = match;
return true;
}
}
else {
/* The param for the arg is built in. */
parameter = pSpecChar;
parameterArg = argOffset + 1;
iCurArg += 1;
argOffset = 0;
state = match;
return true;
}
}
else {
/* Good, we matched the parm and no
* arg is required. */
parameter = pSpecChar;
parameterArg = 0;
argOffset += 1;
state = match;
return true;
}
}
}
/* We did not find a match. Bad Argument. */
parameter = argChar;
parameterArg = 0;
argOffset += 1;
state = invalid;
return true;
}
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