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#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "appenv.h"
#include "app_procs.h"
#include "batch.h"
#include "procedural_db.h"
static int batch_is_cmd (char *cmd);
static void batch_run_cmd (char *cmd);
static void batch_run_cmds (FILE *fp);
static void batch_read (gpointer data,
gint source,
GdkInputCondition condition);
void
batch_init ()
{
extern char **batch_cmds;
FILE *fp;
int read_from_stdin;
int i;
read_from_stdin = FALSE;
for (i = 0; batch_cmds[i]; i++)
{
if (strcmp (batch_cmds[i], "-") == 0)
{
if (!read_from_stdin)
{
g_print ("reading batch commands from stdin\n");
gdk_input_add (STDIN_FILENO, GDK_INPUT_READ, batch_read, NULL);
read_from_stdin = TRUE;
}
}
else if (batch_is_cmd (batch_cmds[i]))
{
batch_run_cmd (batch_cmds[i]);
}
else
{
fp = fopen (batch_cmds[i], "r");
if (!fp)
g_print ("unable to open batch file: \"%s\"\n", batch_cmds[i]);
batch_run_cmds (fp);
fclose (fp);
}
}
}
static int
batch_is_cmd (char *cmd)
{
int paren_level;
if (!cmd)
return FALSE;
cmd = strchr (cmd, '(');
if (!cmd)
return FALSE;
cmd += 1;
paren_level = 1;
while (*cmd)
{
if (*cmd == ')')
paren_level -= 1;
else if (*cmd == '(')
paren_level += 1;
cmd++;
}
return (paren_level == 0);
}
char *
get_tok(char **rest)
{
char *tok_start, *tok;
int i,j,len,escapes;
/* Skip delimiters */
while((**rest != 0) &&
(**rest == ' ' || **rest == '\t'))
(*rest)++;
/* token starts here */
tok_start = *rest;
if(**rest == '"'){
/* Handle string */
/* Skip quote */
(*rest)++;
tok_start++;
len = 0;
escapes = 0;
/* Scan to end while skipping escaped quotes */
while((**rest != 0) &&
(**rest != '"')){
if(**rest == '\\'){
(*rest)++;
escapes++;
}
(*rest)++;
len++;
}
if(**rest == '"'){
(*rest)++;
tok = g_malloc(len+1);
}
else{
g_print("String not properly terminated.");
return NULL;
}
/* Copy the string while converting the escaped characters. */
/* Only double quote and backspace is accepted other escapes are ignored. */
j = 0;
for (i=0;i < len + escapes;i++){
if(tok_start[i] != '\\')
tok[j++] = tok_start[i];
else{
i++;
if(tok_start[i] == '"' || tok_start[i] == '\\')
tok[j++] = tok_start[i];
}
}
tok[j] = 0;
}
else{
/* Handle number or identifier */
while((**rest != 0) &&
((**rest >= 'a' && **rest <= 'z') ||
(**rest >= 'A' && **rest <= 'Z') ||
(**rest >= '0' && **rest <= '9') ||
(**rest == '-') ||
(**rest == '_')))
(*rest)++;
if (*rest != tok_start){
len = *rest - tok_start;
tok = g_malloc(len+1);
strncpy(tok,tok_start,len);
tok[len]=0;
}
else{
if(**rest == 0){
g_print("Unexpected end of command argument.");
return NULL;
}
/* One character token - normally "(" or ")" */
tok = g_malloc(2);
tok[0] = *rest[0];
tok[1] = 0;
(*rest)++;
}
}
return tok;
}
static void
batch_run_cmd (char *cmd)
{
ProcRecord *proc;
Argument *args;
Argument *vals;
char *rest;
char *cmdname;
char *tmpname;
char *t;
int i;
rest = cmd;
t = get_tok(&rest);
if (!t || t[0] != '(')
return;
g_free(t);
cmdname = get_tok (&rest);
if (!cmdname)
return;
proc = procedural_db_lookup (cmdname);
if (!proc)
{
/* Lame hack for "-" to "_" conversion */
t = tmpname = g_strdup (cmdname);
while (*t)
{
if (*t == '-')
*t = '_';
t++;
}
proc = procedural_db_lookup (tmpname);
if (!proc)
{
g_print ("could not find procedure: \"%s\"\n", cmdname);
return;
}
g_free (tmpname);
}
/* (gimp-procedural-db-dump "/tmp/pdb_dump") */
args = g_new (Argument, proc->num_args);
for (i = 0; i < proc->num_args; i++)
{
args[i].arg_type = proc->args[i].arg_type;
switch (proc->args[i].arg_type)
{
case PDB_INT32:
case PDB_INT16:
case PDB_INT8:
t = get_tok (&rest);
if (!t)
goto error;
args[i].value.pdb_int = atoi (t);
g_free(t);
break;
case PDB_FLOAT:
t = get_tok (&rest);
if (!t)
goto error;
args[i].value.pdb_float = atof (t);
g_free(t);
break;
case PDB_STRING:
t = get_tok (&rest);
if (!t)
goto error;
args[i].value.pdb_pointer = g_strdup (t);
g_free(t);
break;
case PDB_INT32ARRAY:
case PDB_INT16ARRAY:
case PDB_INT8ARRAY:
case PDB_FLOATARRAY:
case PDB_STRINGARRAY:
g_print ("procedures taking array arguments are currently not supported as batch operations\n");
goto error;
case PDB_COLOR:
g_print ("procedures taking color arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_REGION:
g_print ("procedures taking region arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_DISPLAY:
g_print ("procedures taking display arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_IMAGE:
g_print ("procedures taking image arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_LAYER:
g_print ("procedures taking layer arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_CHANNEL:
g_print ("procedures taking channel arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_DRAWABLE:
g_print ("procedures taking drawable arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_SELECTION:
g_print ("procedures taking selection arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_BOUNDARY:
g_print ("procedures taking boundary arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_PATH:
g_print ("procedures taking path arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_STATUS:
g_print ("procedures taking status arguments are currently not supported as batch operations\n");
goto error;
break;
case PDB_END:
break;
}
}
vals = procedural_db_execute (proc->name, args);
switch (vals[0].value.pdb_int)
{
case PDB_EXECUTION_ERROR:
g_print ("batch command: %s experienced an execution error.\n", cmdname);
break;
case PDB_CALLING_ERROR:
g_print ("batch command: %s experienced a calling error.\n", cmdname);
break;
case PDB_SUCCESS:
g_print ("batch command: %s executed successfully.\n", cmdname);
break;
}
g_free(cmdname);
return;
error:
g_print ("Unable to run batch command: %s because of bad arguments.\n", cmdname);
g_free(cmdname);
}
static void
batch_run_cmds (FILE *fp)
{
}
static void
batch_read (gpointer data,
gint source,
GdkInputCondition condition)
{
static GString *string;
char buf[32], *t;
int nread, done;
if (condition & GDK_INPUT_READ)
{
do {
nread = read (source, &buf, sizeof (char) * 31);
} while ((nread == -1) && ((errno == EAGAIN) || (errno == EINTR)));
if ((nread == 0) && (!string || (string->len == 0)))
app_exit (FALSE);
buf[nread] = '\0';
if (!string)
string = g_string_new ("");
t = buf;
if (string->len == 0)
{
while (*t)
{
if (isspace (*t))
t++;
else
break;
}
}
g_string_append (string, t);
done = FALSE;
while (*t)
{
if ((*t == '\n') || (*t == '\r'))
done = TRUE;
t++;
}
if (done && batch_is_cmd (string->str))
{
batch_run_cmd (string->str);
g_string_truncate (string, 0);
}
}
}
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