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cmd: Add support for LSS comparison operator in if statements.

This commit is contained in:
Frédéric Delanoy 2012-10-25 23:48:02 +02:00 committed by Alexandre Julliard
parent 17607b8020
commit 154710a093
2 changed files with 81 additions and 32 deletions
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61
programs/cmd/builtins.c
View File

@ -104,6 +104,7 @@ static const WCHAR onW[] = {'O','N','\0'};
static const WCHAR offW[] = {'O','F','F','\0'};
static const WCHAR parmY[] = {'/','Y','\0'};
static const WCHAR parmNoY[] = {'/','-','Y','\0'};
static const WCHAR eqeqW[] = {'=','=','\0'};
static HINSTANCE hinst;
struct env_stack *saved_environment;
@ -2332,6 +2333,52 @@ void WCMD_popd (void) {
LocalFree (temp);
}
/*******************************************************************
* evaluate_if_comparison
*
* Evaluates an "if" comparison operation
*
* PARAMS
* leftOperand [I] left operand, non NULL
* operator [I] "if" binary comparison operator, non NULL
* rightOperand [I] right operand, non NULL
* caseInsensitive [I] 0 for case sensitive comparison, anything else for insensitive
*
* RETURNS
* Success: 1 if operator applied to the operands evaluates to TRUE
* 0 if operator applied to the operands evaluates to FALSE
* Failure: -1 if operator is not recognized
*/
static int evaluate_if_comparison(const WCHAR *leftOperand, const WCHAR *operator,
const WCHAR *rightOperand, int caseInsensitive)
{
WCHAR *endptr_leftOp, *endptr_rightOp;
long int leftOperand_int, rightOperand_int;
BOOL int_operands;
static const WCHAR lssW[] = {'l','s','s','\0'};
/* == is a special case, as it always compares strings */
if (!lstrcmpiW(operator, eqeqW))
return caseInsensitive ? lstrcmpiW(leftOperand, rightOperand) == 0
: lstrcmpW (leftOperand, rightOperand) == 0;
/* Check if we have plain integers (in decimal, octal or hexadecimal notation) */
leftOperand_int = strtolW(leftOperand, &endptr_leftOp, 0);
rightOperand_int = strtolW(rightOperand, &endptr_rightOp, 0);
int_operands = (!*endptr_leftOp) && (!*endptr_rightOp);
/* Perform actual (integer or string) comparison */
if (!lstrcmpiW(operator, lssW)) {
if (int_operands)
return leftOperand_int < rightOperand_int;
else
return caseInsensitive ? lstrcmpiW(leftOperand, rightOperand) < 0
: lstrcmpW (leftOperand, rightOperand) < 0;
}
return -1;
}
/****************************************************************************
* WCMD_if
*
@ -2355,7 +2402,6 @@ void WCMD_if (WCHAR *p, CMD_LIST **cmdList)
static const WCHAR errlvlW[] = {'e','r','r','o','r','l','e','v','e','l','\0'};
static const WCHAR existW[] = {'e','x','i','s','t','\0'};
static const WCHAR defdW[] = {'d','e','f','i','n','e','d','\0'};
static const WCHAR eqeqW[] = {'=','=','\0'};
static const WCHAR parmI[] = {'/','I','\0'};
int caseInsensitive = (strstrW(quals, parmI) != NULL);
@ -2394,18 +2440,21 @@ void WCMD_if (WCHAR *p, CMD_LIST **cmdList)
while (*p == ' ' || *p == '\t')
p++;
if (strncmpW(p, eqeqW, strlenW(eqeqW)))
goto syntax_err;
if (!strncmpW(p, eqeqW, strlenW(eqeqW)))
strcpyW(operator, eqeqW);
else {
strcpyW(operator, WCMD_parameter(p, 0, &paramStart, FALSE, FALSE));
if (!*operator) goto syntax_err;
}
p += strlenW(operator);
strcpyW(rightOperand, WCMD_parameter(p, 0, &paramStart, TRUE, FALSE));
if (!*rightOperand)
goto syntax_err;
test = caseInsensitive ? lstrcmpiW(leftOperand, rightOperand) == 0
: lstrcmpW (leftOperand, rightOperand) == 0;
test = evaluate_if_comparison(leftOperand, operator, rightOperand, caseInsensitive);
if (test == -1)
goto syntax_err;
p = paramStart + strlenW(rightOperand);
WCMD_parameter(p, 0, &command, FALSE, FALSE);

50
programs/cmd/tests/test_builtins.cmd.exp
View File

@ -441,25 +441,25 @@ quake
--- comparison operators
------ for strings
LSS string can be used as operand for LSS comparison
@todo_wine@floats are handled as strings
@todo_wine@numbers in quotes are handled as strings
@todo_wine@negative numbers as well@or_broken@NT4
@todo_wine@if /i seems to work for LSS
@todo_wine@A LSS B
@todo_wine@AB LSS B
@todo_wine@AA LSS B
@todo_wine@A LSS AB
@todo_wine@AA LSS AB
@todo_wine@A LSS BA
@todo_wine@B LSS BA
@todo_wine@AB LSS BA
@todo_wine@AA LSS BA
@todo_wine@A LSS AA
@todo_wine@b LSS B@or_broken@NT4
@todo_wine@a LSS B@or_broken@NT4
@todo_wine@a LSS B insensitive
@todo_wine@A LSS b
@todo_wine@A LSS b insensitive
floats are handled as strings
numbers in quotes are handled as strings
negative numbers as well@or_broken@NT4
if /i seems to work for LSS
A LSS B
AB LSS B
AA LSS B
A LSS AB
AA LSS AB
A LSS BA
B LSS BA
AB LSS BA
AA LSS BA
A LSS AA
b LSS B@or_broken@NT4
a LSS B@or_broken@NT4
a LSS B insensitive
A LSS b
A LSS b insensitive
@todo_wine@A LEQ A
@todo_wine@A LEQ B
@todo_wine@B LEQ B
@ -540,12 +540,12 @@ also in negative form
hexa handled
also in negative form
11 LSS 101
@todo_wine@0 LSS 1
@todo_wine@0 LSS 10
@todo_wine@1 LSS 10
@todo_wine@9 LSS 10
@todo_wine@0 LSS 9
@todo_wine@1 LSS 9
0 LSS 1
0 LSS 10
1 LSS 10
9 LSS 10
0 LSS 9
1 LSS 9
@todo_wine@0 LEQ 0
@todo_wine@0 LEQ 1
@todo_wine@1 LEQ 1