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cmdline parse 

svn path=/trunk/boinc/; revision=994
This commit is contained in:
David Anderson 2003-02-28 23:42:25 +00:00
parent 01b512371c
commit 06031a196a
1 changed files with 43 additions and 12 deletions
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51
lib/util.C
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@ -137,26 +137,57 @@ void boinc_sleep(int seconds) {
// Modifies the string arg.
// Returns argc
// TODO: use strtok here
#define NOT_IN_TOKEN 0
#define IN_SINGLE_QUOTED_TOKEN 1
#define IN_DOUBLE_QUOTED_TOKEN 2
#define IN_UNQUOTED_TOKEN 3
int parse_command_line(char* p, char** argv) {
char** pp = argv;
bool space = true;
int state = NOT_IN_TOKEN;
int argc=0;
while (*p) {
switch(state) {
case NOT_IN_TOKEN:
if (isspace(*p)) {
} else if (*p == '\'') {
p++;
argv[argc++] = p;
state = IN_SINGLE_QUOTED_TOKEN;
break;
} else if (*p == '\"') {
p++;
argv[argc++] = p;
state = IN_DOUBLE_QUOTED_TOKEN;
break;
} else {
argv[argc++] = p;
state = IN_UNQUOTED_TOKEN;
}
break;
case IN_SINGLE_QUOTED_TOKEN:
if (*p == '\'') {
*p = 0;
state = NOT_IN_TOKEN;
}
break;
case IN_DOUBLE_QUOTED_TOKEN:
if (*p == '\"') {
*p = 0;
state = NOT_IN_TOKEN;
}
break;
case IN_UNQUOTED_TOKEN:
if (isspace(*p)) {
*p = 0;
space = true;
} else {
if (space) {
*pp++ = p;
argc++;
space = false;
state = NOT_IN_TOKEN;
}
break;
}
p++;
}
*pp++ = 0;
argv[argc] = 0;
return argc;
}