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cmd: Add support parsing for /f options and implement skip.

This commit is contained in:
Jason Edmeades 2012-10-21 23:46:46 +01:00 committed by Alexandre Julliard
parent d6e86edb99
commit d64298df99
3 changed files with 146 additions and 10 deletions
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143
programs/cmd/builtins.c
View File

@ -1511,6 +1511,119 @@ static void WCMD_part_execute(CMD_LIST **cmdList, const WCHAR *firstcmd,
return;
}
/*****************************************************************************
* WCMD_parse_forf_options
*
* Parses the for /f 'options', extracting the values and validating the
* keywords. Note all keywords are optional.
* Parameters:
* options [I] The unparsed parameter string
* eol [O] Set to the comment character (eol=x)
* skip [O] Set to the number of lines to skip (skip=xx)
* delims [O] Set to the token delimiters (delims=)
* tokens [O] Set to the requested tokens, as provided (tokens=)
* usebackq [O] Set to TRUE if usebackq found
*
* Returns TRUE on success, FALSE on syntax error
*
*/
static BOOL WCMD_parse_forf_options(WCHAR *options, WCHAR *eol, int *skip,
WCHAR *delims, WCHAR *tokens, BOOL *usebackq)
{
WCHAR *pos = options;
int len = strlenW(pos);
static const WCHAR eolW[] = {'e','o','l','='};
static const WCHAR skipW[] = {'s','k','i','p','='};
static const WCHAR tokensW[] = {'t','o','k','e','n','s','='};
static const WCHAR delimsW[] = {'d','e','l','i','m','s','='};
static const WCHAR usebackqW[] = {'u','s','e','b','a','c','k','q'};
static const WCHAR forf_defaultdelims[] = {' ', '\t', '\0'};
static const WCHAR forf_defaulttokens[] = {'1', '\0'};
/* Initialize to defaults */
strcpyW(delims, forf_defaultdelims);
strcpyW(tokens, forf_defaulttokens);
*eol = 0;
*skip = 0;
*usebackq = FALSE;
/* Strip (optional) leading and trailing quotes */
if ((*pos == '"') && (pos[len-1] == '"')) {
pos[len-1] = 0;
pos++;
}
/* Process each keyword */
while (pos && *pos) {
if (*pos == ' ' || *pos == '\t') {
pos++;
/* Save End of line character (Ignore line if first token (based on delims) starts with it) */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, sizeof(eolW)/sizeof(WCHAR),
eolW, sizeof(eolW)/sizeof(WCHAR)) == CSTR_EQUAL) {
*eol = *(pos + sizeof(eolW)/sizeof(WCHAR));
pos = pos + sizeof(eolW)/sizeof(WCHAR) + 1;
WINE_FIXME("Found eol as %c(%x)\n", *eol, *eol);
/* Save number of lines to skip (Can be in base 10, hex (0x...) or octal (0xx) */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, sizeof(skipW)/sizeof(WCHAR),
skipW, sizeof(skipW)/sizeof(WCHAR)) == CSTR_EQUAL) {
WCHAR *nextchar = NULL;
pos = pos + sizeof(skipW)/sizeof(WCHAR);
*skip = strtoulW(pos, &nextchar, 0);
WINE_TRACE("Found skip as %d lines\n", *skip);
pos = nextchar;
/* Save if usebackq semantics are in effect */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, sizeof(usebackqW)/sizeof(WCHAR),
usebackqW, sizeof(usebackqW)/sizeof(WCHAR)) == CSTR_EQUAL) {
*usebackq = TRUE;
pos = pos + sizeof(usebackqW)/sizeof(WCHAR);
WINE_FIXME("Found usebackq\n");
/* Save the supplied delims. Slightly odd as space can be a delimiter but only
if you finish the optionsroot string with delims= otherwise the space is
just a token delimiter! */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, sizeof(delimsW)/sizeof(WCHAR),
delimsW, sizeof(delimsW)/sizeof(WCHAR)) == CSTR_EQUAL) {
int i=0;
pos = pos + sizeof(delimsW)/sizeof(WCHAR);
while (*pos && *pos != ' ') {
delims[i++] = *pos;
pos++;
}
if (*pos==' ' && *(pos+1)==0) delims[i++] = *pos;
delims[i++] = 0; /* Null terminate the delims */
WINE_FIXME("Found delims as '%s'\n", wine_dbgstr_w(delims));
/* Save the tokens being requested */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, sizeof(tokensW)/sizeof(WCHAR),
tokensW, sizeof(tokensW)/sizeof(WCHAR)) == CSTR_EQUAL) {
int i=0;
pos = pos + sizeof(tokensW)/sizeof(WCHAR);
while (*pos && *pos != ' ') {
tokens[i++] = *pos;
pos++;
}
tokens[i++] = 0; /* Null terminate the tokens */
WINE_FIXME("Found tokens as '%s'\n", wine_dbgstr_w(tokens));
} else {
WINE_WARN("Unexpected data in optionsroot: '%s'\n", wine_dbgstr_w(pos));
return FALSE;
}
}
return TRUE;
}
/**************************************************************************
* WCMD_for
*
@ -1536,7 +1649,6 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
int thisDepth;
WCHAR optionsRoot[MAX_PATH];
DIRECTORY_STACK *dirsToWalk = NULL;
BOOL expandDirs = FALSE;
BOOL useNumbers = FALSE;
BOOL doFileset = FALSE;
@ -1546,6 +1658,11 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
int itemNum;
CMD_LIST *thisCmdStart;
int parameterNo = 0;
WCHAR forf_eol = 0;
int forf_skip = 0;
WCHAR forf_delims[256];
WCHAR forf_tokens[MAXSTRING];
BOOL forf_usebackq;
/* Handle optional qualifiers (multiple are allowed) */
WCHAR *thisArg = WCMD_parameter(p, parameterNo++, NULL, NULL, FALSE, FALSE);
@ -1579,10 +1696,6 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
if (thisArg && *thisArg != '/' && *thisArg != '%') {
parameterNo++;
strcpyW(optionsRoot, thisArg);
if (!doRecurse) {
static unsigned int once;
if (!once++) WINE_FIXME("/F needs to handle options\n");
}
}
break;
}
@ -1600,8 +1713,17 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
return;
}
/* With for /f parse the options if provided */
if (doFileset) {
if (!WCMD_parse_forf_options(optionsRoot, &forf_eol, &forf_skip,
forf_delims, forf_tokens, &forf_usebackq))
{
WCMD_output_stderr (WCMD_LoadMessage(WCMD_SYNTAXERR));
return;
}
/* Set up the list of directories to recurse if we are going to */
if (doRecurse) {
} else if (doRecurse) {
/* Allocate memory, add to list */
dirsToWalk = HeapAlloc(GetProcessHeap(), 0, sizeof(DIRECTORY_STACK));
dirsToWalk->next = NULL;
@ -1835,6 +1957,13 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
while (WCMD_fgets(buffer, sizeof(buffer)/sizeof(WCHAR), input)) {
/* Skip lines if requested */
if (forf_skip) {
forf_skip--;
buffer[0] = 0;
continue;
}
/* Skip blank lines*/
parm = WCMD_parameter (buffer, 0, &where, NULL, FALSE, FALSE);
WINE_TRACE("Parsed parameter: %s from %s\n", wine_dbgstr_w(parm),
@ -1871,7 +2000,7 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
WINE_TRACE("Parsed parameter: %s from %s\n", wine_dbgstr_w(parm),
wine_dbgstr_w(buffer));
if (where) {
if (where && forf_skip == 0) {
/* FIXME: The following should be moved into its own routine and
reused for the string literal parsing below */
thisCmdStart = cmdStart;

4
programs/cmd/tests/test_builtins.cmd
View File

@ -1179,6 +1179,10 @@ for /f "skip=3" %%i in (foo) do echo %%i > output_file
if not exist output_file (echo no output) else (del output_file)
for /f "skip=4" %%i in (foo) do echo %%i > output_file
if not exist output_file (echo no output) else (del output_file)
for /f "skip=02" %%i in (foo) do echo %%i
for /f "skip=0x2" %%i in (foo) do echo %%i
for /f "skip=1" %%i in ("skipme") do echo %%i > output_file
if not exist output_file (echo no output) else (del output_file)
cd ..
rd /s/q foobar

9
programs/cmd/tests/test_builtins.cmd.exp
View File

@ -824,9 +824,12 @@ a|d
foo bar baz
@todo_wine@c:\
------ skip option
@todo_wine@c
@todo_wine@no output
@todo_wine@no output
c
no output
no output
c
c
no output
------------ Testing del /a ------------
not-r.test not found after delete, good
r.test found before delete, good