LONG_DOUBLE eval_expr_binop(eval_context *ctx, ast_node *tree) {
expr_binop_data *binop_data = (expr_binop_data*)tree->data;
switch (binop_data->op) {
case OP_ADD:
return eval_expr(ctx, binop_data->lhs) + eval_expr(ctx, binop_data->rhs);
case OP_SUB:
return eval_expr(ctx, binop_data->lhs) - eval_expr(ctx, binop_data->rhs);
case OP_MUL:
return eval_expr(ctx, binop_data->lhs) * eval_expr(ctx, binop_data->rhs);
case OP_DIV:
return eval_expr(ctx, binop_data->lhs) / eval_expr(ctx, binop_data->rhs);
case OP_MOD: {
// Knuthsche "floored division"
LONG_DOUBLE a = eval_expr(ctx, binop_data->lhs);
LONG_DOUBLE n = eval_expr(ctx, binop_data->rhs);
return a-n*floor(a/n);
}
case OP_EXP:
return pow(eval_expr(ctx, binop_data->lhs), eval_expr(ctx, binop_data->rhs));
case OP_ASS: {
if (binop_data->lhs->type != EXPR_VAR) return eval_emit_error(ctx, "Cannot assign to a non-variable.");
else {
expr_var_data *var_data = (expr_var_data*)binop_data->lhs->data;
LONG_DOUBLE rhs_res = eval_expr(ctx, binop_data->rhs);
store_var(store_get(), var_data->name, rhs_res);
return rhs_res;
}
}
default: return eval_emit_error(ctx, "Operator not implemented.");
}
}
void list_o_depends(FILE *fp, char *var, char *dir, int platform, int optimize)
{
char *ch,word[100],tmp[200],o_name[200],sl,*tail;
if (platform==DOS) sl='\\'; else sl='/';
get_var(var,z);
ch=z;
if (!dir) dir=".";
dos_path(dir);
if (optimize) tail="_O"; else tail="_D";
while (fetch_word(&ch,word))
{
oextend(dir,word,o_name,platform,optimize);
if (!get_var(o_name,z))
{
dos_path(word);
if (platform!=DOS)
{
if (!strcmp(dir,"."))
fprintf(fp,"%s : %s.c\n",o_name,word);
else
fprintf(fp,"%s : %s%c%s.c\n",o_name,dir,sl,word);
}
else
fprintf(fp,"%s : .%c%s%c%s.c\n",o_name,sl,dir,sl,word);
if (platform==DOS)
fprintf(fp,"\twpp386 %s%c%s.c $(CFLAGS%s) -fo=%s\n",dir,sl,word,tail,o_name);
else
fprintf(fp,"\t$(CC) %s%c%s.c $(CFLAGS%s) -c -o %s\n",dir,sl,word,tail,o_name);
store_var(o_name,"O");
if (dir)
sprintf(tmp,"%s%c%s.c",dir,sl,word);
else
sprintf(tmp,"%s.c",word);
list_c_depends(fp,tmp,platform,optimize);
}
}
}
/* Reverse Polish calculator:
*
* Binary operations (+-*\%)
* operand operand operator
*
* Example: 6 minus 2 in Reverse Polish Notation is "6 2 -"
*/
int main() {
int type;
double op2;
char s[MAXOP];
char ltr;
while ((type = getop(s)) != EOF) {
if (isalpha(type) && islower(type)) {
push(fetch_var(type));
continue;
}
switch (type) {
case NUMBER:
push(atof(s));
break;
case '+':
push(pop() + pop());
break;
case '*':
push(pop() * pop());
break;
case '-':
op2 = pop();
push(pop() - op2);
break;
case '/':
op2 = pop();
if (op2 != 0.0) {
push(pop() / op2);
} else {
printf("Error: Cannot divide by zero.\n");
}
break;
/* Yay for modulus! */
case '%':
op2 = pop();
if (op2 != 0.0) {
push((int)pop() % (int)op2);
} else {
printf("Error: Cannot modulo by zero.\n");
}
break;
/* Top of stack */
case '?':
stack_top();
break;
/* Dupe the top of the stack */
case '#':
dupe_top();
break;
/* Swap the top two */
case '~':
swap_top_two();
break;
/* Clear the stack */
case '!':
clear_stack();
break;
/* sin() support */
case '(':
op2 = sin(pop());
push(op2);
break;
/* exp() support */
case '{':
op2 = exp(pop());
push(op2);
break;
/* pow() support */
case '^':
op2 = pop();
push(pow(pop(), op2));
break;
/* 'lastprint' support */
case '@':
push(fetch_last());
break;
/* setting variables */
case '=':
ltr = getchar();
if (isalpha(ltr) && islower(ltr)) {
op2 = pop();
store_var(ltr, op2);
push(op2);
}
break;
/* Final output */
case '\n':
op2 = pop();
printf("\t%.8g\n", op2);
/* Extra Credit: Lets output every non-zero variable! */
for (ltr = 'a'; ltr <= 'z'; ltr++) {
if (fetch_var(ltr) != 0) {
printf("\t%c: %.8g\n", ltr, fetch_var(ltr));
}
}
store_last(op2);
break;
default:
printf("Error: Unknown command %s\n", s);
break;
}
}
return 0;
}
void process_line(char *st, FILE *fp)
{
char word[100],*wp,*ws,skip,rd;
expand_line(st,z);
st=z;
if (get_word(&st,word))
{
if (!strcmp(word,"INCLUDE"))
{
if (!get_word(&st,word))
{
fprintf(stderr,"expecting filename after INCLUDE on line %d\n",line_on);
exit(1);
}
process_file(word);
} else if (!strcmp(word,"SECTION"))
{
skip=0; rd=0;
wp=st;
do
{
while (*wp==' ') wp++;
ws=wp;
if (*wp==0) skip=1;
else
{
while (*wp!=' ' && *wp) wp++;
*wp=0;
if (!strcmp(ws,plat_name[detect_platform()]))
rd=1;
}
} while (!skip && !rd);
do
{
fgets(word,100,fp);
while (word[strlen(word)-1]=='\n' || word[strlen(word)-1]=='\r')
word[strlen(word)-1]=0;
strcat(word,"\n");
if (rd)
{
if (strcmp(word,"END\n"))
{
if (plat_stuff)
{
plat_stuff=realloc(plat_stuff,strlen(plat_stuff)+1+strlen(word));
strcat(plat_stuff,word);
}
else
{
plat_stuff=malloc(strlen(plat_stuff)+1+strlen(word));
strcpy(plat_stuff,word);
}
}
}
} while (strcmp(word,"END\n"));
} else
{
get_equal(&st);
store_var(word,st);
}
}
}
/* Runs a handler process specified by full command line <data> (with arguments).
* Before running:
* Replaces environment variables.
* Replaces special MimeRun variables (see above) with the detected values taken from <mres>.
* Replaces %* and %N with the appropriate bits of <lpfile> and <einfo>->lpParameters.
* If <executable> is TRUE, waits until the handler process terminates, otherwise returns
* (almost) immediately.
*/
int run_handler (wchar_t *logfile, wchar_t *data, MimeResults *mres, LPSHELLEXECUTEINFOW einfo, wchar_t *lpfile, wchar_t *lpdir, int executable, int fix_redir)
{
BOOL ret = 0;
PVOID redir;
HMODULE kernel32 = NULL;
Wow64DisableWow64FsRedirectionFunction disablewow64 = NULL;
Wow64RevertWow64FsRedirectionFunction revertwow64 = NULL;
DWORD err;
int i;
int depth = 0;
size_t dupdatalen;
wchar_t *exp_data = NULL;
wchar_t *dupdata = NULL;
wchar_t *dupparams = NULL;
wchar_t **old_argv = NULL, **newargv = NULL;
STARTUPINFOW si;
PROCESS_INFORMATION pi;
DWORD applelen, typelen, enclen, namelen;
wchar_t *store_apple = NULL, *store_type = NULL, *store_enc = NULL, *store_name = NULL;
logtofilew (logfile, L">run_handler\n");
if (einfo->lpParameters != NULL)
{
i = wcslen (einfo->lpParameters) + 1 + wcslen (lpfile);
logtofilew (logfile, L"Fake commandline length is %d + 1 + %d == %d\n", wcslen (einfo->lpParameters), wcslen (lpfile), i);
dupparams = (wchar_t *) malloc (sizeof (wchar_t *) * (i + 1));
if (dupparams == NULL)
{
logtofilew (logfile, L"Failed to allocate %d bytes\n", sizeof (wchar_t *) * (i + 1));
return 1;
}
dupparams[0] = L'\0';
wcscat (dupparams, lpfile);
wcscat (dupparams, L" ");
wcscat (dupparams, einfo->lpParameters);
logtofilew (logfile, L"Fake commandline is %s\n", dupparams);
if (make_argv (dupparams, &i, NULL) == 0 && i >= 1)
{
old_argv = (wchar_t **) malloc (sizeof (wchar_t *) * (i + 1));
make_argv (dupparams, NULL, old_argv);
old_argv[i] = NULL;
logtofilew (logfile, L"Old arguments:\n");
for (i = 0; old_argv[i] != NULL; i++)
logtofilew (logfile, L"%2d: %s\n", i, old_argv[i]);
logtofilew (logfile, L"\n");
}
else
{
logtofilew (logfile, L"First call to make_argv() have failed or argc <= 0\n");
free (dupparams);
return 2;
}
}
else
{
old_argv = (wchar_t **) malloc (sizeof (wchar_t *) * 2);
old_argv[0] = lpfile;
old_argv[1] = NULL;
logtofilew (logfile, L"Old arguments:\n");
for (i = 0; old_argv[i] != NULL; i++)
logtofilew (logfile, L"%2d: %s\n", i, old_argv[i]);
logtofilew (logfile, L"\n");
}
store_name = store_var (NAME_VARW, &namelen);
store_type = store_var (TYPE_VARW, &typelen);
store_enc = store_var (ENC_VARW, &enclen);
store_apple = store_var (APPLE_VARW, &applelen);
logtofilew (logfile, L"Backed up variables: {%s}, {%s}, {%s}, {%s}\n", store_name, store_type, store_enc, store_apple);
SetEnvironmentVariableW (NAME_VARW, mres->wname == NULL ? L"" : mres->wname);
SetEnvironmentVariableW (TYPE_VARW, mres->wtype == NULL ? L"" : mres->wtype);
SetEnvironmentVariableW (ENC_VARW, mres->wenc == NULL ? L"" : mres->wenc);
SetEnvironmentVariableW (APPLE_VARW, mres->wapple == NULL ? L"" : mres->wapple);
exp_data = expand_vars (data, old_argv);
logtofilew (logfile, L"Commandline with expanded variables: %s\n", exp_data);
if (dupparams != NULL)
free (dupparams);
if (old_argv != NULL)
free (old_argv);
SetEnvironmentVariableW (NAME_VARW, store_name);
SetEnvironmentVariableW (TYPE_VARW, store_type);
SetEnvironmentVariableW (ENC_VARW, store_enc);
SetEnvironmentVariableW (APPLE_VARW, store_apple);
if (store_apple != NULL)
free (store_apple);
if (store_type != NULL)
free (store_type);
if (store_enc != NULL)
free (store_enc);
if (store_name != NULL)
free (store_name);
dupdata = (wchar_t *) wcsdup (exp_data);
if (make_argv (dupdata, &i, NULL) == 0 && i >= 1)
{
newargv = (wchar_t **) malloc (sizeof (wchar_t *) * (i + 1));
make_argv (dupdata, NULL, newargv);
newargv[i] = NULL;
}
else
{
logtofilew (logfile, L"First call to make_argv() have failed or argc <= 0\n");
free (dupdata);
return 3;
}
memset (&si, 0, sizeof (si));
si.cb = sizeof (si);
if (einfo->nShow != SW_SHOWDEFAULT)
{
si.dwFlags |= STARTF_USESHOWWINDOW;
si.wShowWindow = einfo->nShow;
logtofilew (logfile, L"Using nShow == %d\n", si.wShowWindow);
}
if (einfo->fMask & SEE_MASK_NO_CONSOLE)
{
logtofilew (logfile, L"We will create new console and will not inherit in/out/err handles\n");
}
else
{
logtofilew (logfile, L"We will not create new console, child process will inherit in/out/err handles\n");
si.dwFlags |= STARTF_USESTDHANDLES;
si.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
si.hStdError = GetStdHandle (STD_ERROR_HANDLE);
}
if (fix_redir && iam32on64 ())
{
kernel32 = LoadLibraryW (L"kernel32.dll");
if (kernel32 != NULL)
{
disablewow64 = (Wow64DisableWow64FsRedirectionFunction) GetProcAddress (kernel32, "Wow64DisableWow64FsRedirection");
revertwow64 = (Wow64RevertWow64FsRedirectionFunction) GetProcAddress (kernel32, "Wow64RevertWow64FsRedirection");
if (disablewow64 == NULL || revertwow64 == NULL)
fix_redir = 0;
else
fix_redir = disablewow64 (&redir);
}
else
fix_redir = 0;
}
else
fix_redir = 0;
ret = CreateProcessW (newargv[0], exp_data, NULL, NULL, TRUE, einfo->fMask & SEE_MASK_NO_CONSOLE ? CREATE_NEW_CONSOLE : 0, NULL, lpdir, &si, &pi);
err = GetLastError();
if (fix_redir != 0)
revertwow64 (redir);
if (kernel32 != NULL)
FreeLibrary (kernel32);
if (ret != 0)
{
logtofilew (logfile, L"CreateProcessW() succeeded\n");
ret = 0;
if (executable)
{
logtofilew (logfile, L"Waiting until executable process terminates...\n");
WaitForSingleObject (pi.hProcess, INFINITE);
logtofilew (logfile, L"Finished waiting until executable process terminates\n");
}
else
{
if (einfo->fMask & SEE_MASK_NOCLOSEPROCESS)
{
einfo->hProcess = pi.hProcess;
logtofilew (logfile, L"Will return process handle %08X\n", pi.hProcess);
}
if (einfo->fMask & SEE_MASK_WAITFORINPUTIDLE)
{
logtofilew (logfile, L"Waiting until non-executable process' input idles...\n");
WaitForInputIdle (pi.hProcess, 60*1000);
logtofilew (logfile, L"Finished waiting until non-executable process' input idles\n");
}
}
einfo->hInstApp = (HINSTANCE) 33;
}
else
{
logtofilew (logfile, L"CreateProcessW() have failed with %d\n", err);
switch (err)
{
case ERROR_FILE_NOT_FOUND:
einfo->hInstApp = (HINSTANCE) SE_ERR_FNF;
break;
case ERROR_PATH_NOT_FOUND:
einfo->hInstApp = (HINSTANCE) SE_ERR_PNF;
break;
case ERROR_ACCESS_DENIED:
einfo->hInstApp = (HINSTANCE) SE_ERR_ACCESSDENIED;
break;
case ERROR_NOT_ENOUGH_MEMORY:
einfo->hInstApp = (HINSTANCE) SE_ERR_OOM;
break;
default:
einfo->hInstApp = (HINSTANCE) 33;
}
ret = 1;
}
logtofilew (logfile, L"hInstApp is set to %d\n", einfo->hInstApp);
free (exp_data);
if (dupdata != NULL)
free (dupdata);
if (newargv != NULL)
free (newargv);
logtofilew (logfile, L"<run_handler %d\n", ret);
return ret;
}
gboolean
gtksnippets_inplaceparser_activate(GtkSnippetsInPlaceParser *self, const gchar* content)
{
gtksnippets_inplaceparser_deactivate(self);
GtkTextBuffer * buffer = gtk_text_view_get_buffer(self->priv->view);
GtkTextMark *insert = gtk_text_buffer_get_insert(buffer);
/*TODO remove this gsnippets-parser dependency*/
if (gsnippets_parser_count_vars(content) <= 0)
{
GtkTextIter cur;
gtk_text_buffer_get_iter_at_mark(buffer,&cur,insert);
gchar *indent = _compute_line_indentation(self->priv->view,&cur);
gchar *indent_text = _get_text_with_indent(content, indent);
g_free(indent);
gtk_text_buffer_insert_at_cursor(buffer,indent_text,-1);
g_free(indent_text);
gtk_text_view_scroll_mark_onscreen(self->priv->view,insert);
return FALSE;
}
GtkTextIter start_iter;
gtk_text_buffer_get_iter_at_mark(buffer,&start_iter,insert);
GtkTextMark *start_mark = gtk_text_buffer_create_mark(buffer,
SNIPPET_START_MARK,
&start_iter,
TRUE);
GtkTextMark *end_text_mark = gtk_text_buffer_create_mark(buffer,
SNIPPET_END_MARK,
&start_iter,
FALSE);
GtkTextMark *end_mark;
gchar *indent = _compute_line_indentation(self->priv->view,&start_iter);
gchar *indent_text = _get_text_with_indent(content, indent);
g_free(indent);
gtk_text_buffer_insert_at_cursor(buffer,indent_text,-1);
g_free(indent_text);
gtk_text_view_scroll_mark_onscreen(self->priv->view,end_text_mark);
gsnippets_func_manager_register_func("cursor",
gsnippets_func_empty,
self);
/* Searching variables */
GtkSnippetsGtvVar *var;
var = search_var(self,buffer,start_mark,end_text_mark);
while(var!=NULL)
{
end_mark = gtksnippets_gtv_var_get_end_mark(var);
store_var(self,var);
var = search_var(self,buffer,end_mark,end_text_mark);
}
/*Sorting varables by index*/
self->priv->vars = g_list_sort(self->priv->vars,
sort_variables);
self->priv->active = TRUE;
active_next_var(self);
/*The first var is not handled by cursor-changed. We must set moving to FALSE*/
self->priv->moving = FALSE;
g_signal_connect(self->priv->view,"key-press-event",G_CALLBACK(view_key_press_cb),self);
g_signal_connect_after(buffer,"insert-text",G_CALLBACK(view_insert_text_cb),self);
g_signal_connect_after(buffer,"delete-range",G_CALLBACK(buffer_delete_range_cb),self);
g_signal_connect_after(buffer,"mark-set",G_CALLBACK(buffer_mark_set_cb),self);
g_signal_emit (G_OBJECT (self), signals[PARSER_START], 0);
return TRUE;
}
