TToken* get_token()
{
if(token_buffer != NULL)
{
token = token_buffer;
token_buffer = NULL;
return token;
}
TString buffer;
States state = S_START;
char a[2]; // array for hex number
int c, i=0;
initString(&buffer, STR_DEFAULT_SIZE);
token->data = buffer.data;
while(1)
{
c = fgetc(fp);
switch(state)
{
case S_START:
switch (c)
{
case EOF:
token->type = TOKEN_EOF;
return token;
case '+':
token->type = TOKEN_ADD;
return token;
case '-':
token->type = TOKEN_SUB;
return token;
case '*':
token->type = TOKEN_MUL;
return token;
case '/':
state = S_DIV;
break;
case '=':
state = S_ASSIGN;
break;
case '!':
state = S_EXCM;
break;
case '<':
state = S_LESS;
break;
case '>':
state = S_GREAT;
break;
case '(':
token->type = TOKEN_LROUND_BRACKET;
return token;
case ')':
token->type = TOKEN_RROUND_BRACKET;
return token;
case '{':
token->type = TOKEN_LCURLY_BRACKET;
return token;
case '}':
token->type = TOKEN_RCURLY_BRACKET;
return token;
case ',':
token->type = TOKEN_COMMA;
return token;
case ';':
token->type = TOKEN_SEMICOLON;
return token;
case '"':
state = S_QUOT;
break;
default:
if(isdigit(c))
{
state = S_INT;
insertIntoString(&buffer, c);
}
else if (isalpha(c) || c == '_')
{
state = S_IDENT;
insertIntoString(&buffer, c);
}
else if (isspace(c))
break;
else
state = S_ERROR;
}
break;
//**********************************************
case S_INT: // INTEGER
if (isdigit(c))
{
insertIntoString(&buffer, c);
}
else if(c == '.')
{
insertIntoString(&buffer, c);
state = S_DOT;
}
else if(c == 'E' || c == 'e')
{
insertIntoString(&buffer, c);
state = S_EXPO_E;
}
else
{
insertIntoString(&buffer, 0);
ungetc(c,fp);
token->type = TOKEN_INT_VALUE;
token->data = buffer.data;
return token;
}
break;
//*************************************************
case S_DOT: // number DOT
if (isdigit(c))
{
insertIntoString(&buffer, c);
state = S_DBL;
}
else
{
state = S_ERROR;
}
break;
//*************************************************
case S_DBL: // DOUBLE
if (isdigit(c))
{
insertIntoString(&buffer, c);
}
else if(c == 'E' || c == 'e')
{
insertIntoString(&buffer, c);
state = S_EXPO_E;
}
else
{
insertIntoString(&buffer, 0);
ungetc(c,fp);
token->type = TOKEN_DOUBLE_VALUE;
token->data = buffer.data;
return token;
}
break;
//******************************************************
case S_EXPO_E: // state S_EXPO_E
if (isdigit(c))
{
insertIntoString(&buffer, c);
state = S_EXPO;
}
else if (c == '+' || c == '-')
{
insertIntoString(&buffer, c);
state= S_EXPO_M;
}
else
{
state = S_ERROR;
}
break;
//*****************************************************
case S_EXPO_M: // state S_EXPO_M
if (isdigit(c))
{
insertIntoString(&buffer, c);
state= S_EXPO;
}
else
{
state=S_ERROR;
}
break;
//*****************************************************
case S_EXPO: // state S_EXPO
if (isdigit(c))
insertIntoString(&buffer, c);
else
{
insertIntoString(&buffer, 0);
ungetc(c,fp);
token->type = TOKEN_DOUBLE_VALUE;
token->data = buffer.data;
return token;
}
break;
//***************************************************
case S_IDENT: //STATE IDENTIFIER
if (isalnum(c) || c == '_')
{
insertIntoString(&buffer, c);
}
else
{
insertIntoString(&buffer, 0);
token->type = TOKEN_IDENTIFIER;
token->data = buffer.data;
keyword_check();
ungetc(c,fp);
return token;
}
break;
//*************************************************************
case S_DIV: // DIVIDE
if (c == '/')
state = S_LCOM;
else if (c == '*')
state = S_LBC;
else
{
ungetc(c,fp);
token->type = TOKEN_DIV;
return token;
}
break;
//***************************************************
case S_LCOM: // LINE COMMENT
if (c == '\n')
state = S_START;
break;
//****************************************************
case S_LBC: // LEFT BLOCK COMMENT
if (c == '*')
state = S_RBC;
if(c == EOF)
state = S_ERROR;
break;
//****************************************************
case S_RBC: //RIGHT BLOCK COMMENT
if (c == '/')
state = S_START;
else if (c == EOF)
state = S_ERROR;
else if (c == '*');
else
state = S_LBC;
break;
//****************************************************
case S_ASSIGN: // ASSIGNMENT
if (c == '=')
{
token->type = TOKEN_EQUAL;
return token;
}
else
{
ungetc(c,fp);
token->type = TOKEN_ASSIGN;
return token;
}
break;
//****************************************************
case S_EXCM: // EXCLAMATION MARK
if (c == '=')
{
token->type = TOKEN_NOT_EQUAL;
return token;
}
else
state = S_ERROR;
break;
//****************************************************
case S_LESS: // LESS THAN
if (c=='=')
{
token->type=TOKEN_LESS_EQUAL;
return token;
}
else if (c == '<')
{
token->type=TOKEN_COUT_BRACKET;
return token;
}
else
{
ungetc(c,fp);
token->type = TOKEN_LESS;
return token;
}
break;
//****************************************************
case S_GREAT: //GREATER THAN
if (c=='=')
{
token->type = TOKEN_GREATER_EQUAL;
return token;
}
else if (c == '>')
{
token->type = TOKEN_CIN_BRACKET;
return token;
}
else
{
ungetc(c,fp);
token->type = TOKEN_GREATER;
return token;
}
break;
//****************************************************
case S_QUOT: //QUOTATION
if (c == '"')
{
insertIntoString(&buffer, 0);
token->type = TOKEN_STRING_VALUE;
token->data = buffer.data;
return token;
}
else if(c == EOF)
{
state = S_ERROR;
}
else if(c == '\\')
{
state = S_ESCAPE;
}
else if(c > 31)
{
insertIntoString(&buffer, c);
}
else
state = S_ERROR;
break;
//****************************************************
case S_ESCAPE: //ESCAPE SEQUENCES
if (c == 't')
{
insertIntoString(&buffer, '\t');
state = S_QUOT;
}
else if (c == '"')
{
insertIntoString(&buffer, '"');
state = S_QUOT;
}
else if (c == '\\')
{
insertIntoString(&buffer, '\\');
state = S_QUOT;
}
else if (c == 'n')
{
insertIntoString(&buffer, '\n');
state = S_QUOT;
}
else if (c == 'x')
{
state = S_HEX_NUMBER;
}
else
{
state=S_ERROR;
}
break;
//****************************************************
case S_HEX_NUMBER: // HEXADECIMAL NUMBER
if (isxdigit(c) && (i < 2)) // if is hexadigit and i<2
{
a[i]=c;
i++;
if (i == 2)
{
if ((a[0] == '0') && (a[1] == '0'))
state=S_ERROR;
else
{
char hta = hex_to_ascii(a[0], a[1]);
insertIntoString(&buffer, hta);
state = S_QUOT;
i = 0;
}
}
}
else
{
state=S_ERROR;
}
break;
//****************************************************
case S_ERROR: // ERROR
exit_error(E_LEX);
}
}
}
/*----------------------------------------------------------------------
Function to control flag set/clearing
Basically, turn the flags into a fake list of features...
Returns 0 unless user has added a keyword, then 1.
----*/
int
flag_maintenance_screen(struct pine *ps, struct flag_screen *flags)
{
int i, lv, lc, maxwidth, offset, need, rv = 0;
char tmp[1200], **p, *spacer;
CONF_S *ctmpa, *first_line;
struct flag_table *fp;
OPT_SCREEN_S screen;
try_again:
maxwidth = MAX(MIN((ps->ttyo ? ps->ttyo->screen_cols : 80), 150), 30);
first_line = NULL;
ctmpa = NULL;
for(p = flags->explanation; p && *p; p++) {
new_confline(&ctmpa);
ctmpa->keymenu = &flag_keymenu;
ctmpa->help = NO_HELP;
ctmpa->tool = flag_checkbox_tool;
ctmpa->flags |= CF_NOSELECT;
ctmpa->valoffset = 0;
ctmpa->value = cpystr(_(*p));
}
/* Now wire flags checkboxes together */
for(lv = 0, lc = 0, fp = (flags->flag_table ? *flags->flag_table : NULL);
fp && fp->name; fp++) { /* longest name */
if(fp->flag != F_COMMENT) {
if(lv < (i = utf8_width(_(fp->name))))
lv = i;
if(fp->comment && lc < (i = utf8_width(fp->comment)))
lc = i;
}
}
lv = MIN(lv,100);
lc = MIN(lc,100);
if(lc > 0)
spacer = " ";
else
spacer = "";
offset = 6;
if((need = offset + 5 + lv + strlen(spacer) + lc) > maxwidth) {
offset -= (need - maxwidth);
offset = MAX(0,offset);
if((need = offset + 5 + lv + strlen(spacer) + lc) > maxwidth) {
spacer = " ";
if((need = offset + 5 + lv + strlen(spacer) + lc) > maxwidth) {
lc -= (need - maxwidth);
lc = MAX(0,lc);
if(lc == 0)
spacer = "";
}
}
}
new_confline(&ctmpa);
ctmpa->keymenu = &flag_keymenu;
ctmpa->help = NO_HELP;
ctmpa->tool = flag_checkbox_tool;
ctmpa->flags |= CF_NOSELECT;
ctmpa->valoffset = 0;
ctmpa->value = cpystr("");
new_confline(&ctmpa);
ctmpa->keymenu = &flag_keymenu;
ctmpa->help = NO_HELP;
ctmpa->tool = flag_checkbox_tool;
ctmpa->flags |= CF_NOSELECT;
ctmpa->valoffset = 0;
utf8_snprintf(tmp, sizeof(tmp), "%*.*w %s", offset+3, offset+3, _("Set"), _("Flag/Keyword Name"));
tmp[sizeof(tmp)-1] = '\0';
ctmpa->value = cpystr(tmp);
new_confline(&ctmpa);
ctmpa->keymenu = &flag_keymenu;
ctmpa->help = NO_HELP;
ctmpa->tool = flag_checkbox_tool;
ctmpa->flags |= CF_NOSELECT;
ctmpa->valoffset = 0;
snprintf(tmp, sizeof(tmp), "%*.*s--- %.*s",
offset, offset, "",
lv+lc+strlen(spacer), repeat_char(lv+lc+strlen(spacer), '-'));
tmp[sizeof(tmp)-1] = '\0';
ctmpa->value = cpystr(tmp);
for(fp = (flags->flag_table ? *flags->flag_table : NULL);
fp && fp->name; fp++) { /* build the list */
new_confline(&ctmpa);
if(!first_line && (fp->flag != F_COMMENT))
first_line = ctmpa;
ctmpa->keymenu = &flag_keymenu;
ctmpa->tool = flag_checkbox_tool;
ctmpa->valoffset = offset;
if(fp->flag == F_COMMENT) {
ctmpa->help = NO_HELP;
ctmpa->flags |= CF_NOSELECT;
ctmpa->value = cpystr(fp->name);
}
else {
ctmpa->help = fp->help;
ctmpa->d.f.ftbl = flags->flag_table;
ctmpa->d.f.fp = fp;
utf8_snprintf(tmp, sizeof(tmp), "[%c] %-*.*w%s%-*.*w",
(fp->set == 0) ? ' ' : (fp->set == 1) ? 'X' : '?',
lv, lv, _(fp->name),
spacer, lc, lc, fp->comment ? fp->comment : "");
ctmpa->value = cpystr(tmp);
}
}
memset(&screen, 0, sizeof(screen));
/*
* TRANSLATORS: FLAG MAINTENANCE is a screen title.
* Print something1 using something2. configuration is something1
*/
if(conf_scroll_screen(ps, &screen, first_line,
_("FLAG MAINTENANCE"),
_("configuration"), 0) == FLAG_ADD_RETURN) {
int flags, r;
char keyword[500];
char nickname[500];
char prompt[500];
char *error = NULL;
KEYWORD_S *kw;
HelpType help;
/*
* User is asking to add a new keyword. We will add it to the
* mailbox if necessary and add it to the keywords list from
* Setup/Config. Then we will modify the flag_table and present
* the flag modification screen again.
*/
ps->mangled_screen = 1;
keyword[0] = '\0';
flags = OE_APPEND_CURRENT;
help = NO_HELP;
do {
if(error) {
q_status_message(SM_ORDER, 3, 4, error);
fs_give((void **) &error);
}
strncpy(prompt, _("Keyword to be added : "), sizeof(prompt)-1);
prompt[sizeof(prompt)-1] = '\0';
r = optionally_enter(keyword, -FOOTER_ROWS(ps_global), 0,
sizeof(keyword), prompt, NULL, help, &flags);
if(r == 3)
help = help == NO_HELP ? h_type_keyword : NO_HELP;
else if(r == 1) {
cmd_cancelled("Add Keyword");
goto try_again;
}
removing_leading_and_trailing_white_space(keyword);
} while(r == 3 || keyword_check(keyword, &error));
for(kw = ps->keywords; kw; kw = kw->next) {
if(kw->kw && !strucmp(kw->kw, keyword)) {
q_status_message(SM_ORDER, 3, 4, _("Keyword already configured, changing nickname"));
break;
}
}
snprintf(prompt, sizeof(prompt), _("Optional nickname for \"%s\" : "), keyword);
nickname[0] = '\0';
help = NO_HELP;
do {
r = optionally_enter(nickname, -FOOTER_ROWS(ps_global), 0,
sizeof(nickname), prompt, NULL, help, &flags);
if(r == 3)
help = help == NO_HELP ? h_type_keyword_nickname : NO_HELP;
else if(r == 1) {
cmd_cancelled("Add Keyword");
goto try_again;
}
removing_leading_and_trailing_white_space(nickname);
} while(r == 3);
if(keyword[0]) {
char ***alval;
int offset = -1;
struct variable *var;
var = &ps_global->vars[V_KEYWORDS];
alval = ALVAL(var, Main);
for(kw = ps->keywords; kw; kw = kw->next) {
offset++;
if(kw->kw && !strucmp(kw->kw, keyword)) {
/* looks like it should already exist at offset */
break;
}
}
if(!kw)
offset = -1;
if(offset >= 0 && (*alval) && (*alval)[offset]) {
fs_give((void **) &(*alval)[offset]);
(*alval)[offset] = put_pair(nickname, keyword);
}
else if(!*alval) {
offset = 0;
*alval = (char **) fs_get(2*sizeof(char *));
(*alval)[offset] = put_pair(nickname, keyword);
(*alval)[offset+1] = NULL;
}
else {
for(offset=0; (*alval)[offset]; offset++);
;
fs_resize((void **) alval, (offset + 2) * sizeof(char *));
(*alval)[offset] = put_pair(nickname, keyword);
(*alval)[offset+1] = NULL;
}
set_current_val(var, TRUE, FALSE);
if(ps_global->prc)
ps_global->prc->outstanding_pinerc_changes = 1;
if(ps_global->keywords)
free_keyword_list(&ps_global->keywords);
if(var->current_val.l && var->current_val.l[0])
ps_global->keywords = init_keyword_list(var->current_val.l);
clear_index_cache(ps_global->mail_stream, 0);
rv = 1;
}
}
ps->mangled_screen = 1;
return(rv);
}