/***************************************************************************
* File: string.c *
* *
* Much time and thought has gone into this software and you are *
* benefitting. We hope that you share your changes too. What goes *
* around, comes around. *
* *
* This code was freely distributed with the The Isles 1.1 source code, *
* and has been used here for OLC - OLC would not be what it is without *
* all the previous coders who released their source code. *
* *
***************************************************************************/
#if defined(macintosh)
#include <types.h>
#else
#include <sys/types.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "merc.h"
void show_line_numbers args( ( CHAR_DATA *ch, const char * oldstring ) );
char * line_replace args( (char *orig, int line, char *arg3) );
int count_lines args( ( const char *orig ) );
char * line_delete args( (char *orig, int line) );
/*
The line_replace, count_lines, and line_delete functions
were provided by Thanatos (Jonathan Rose). I wrote the new
line_add and show_line_numbers functions and modified the
string_add function. --Kyle Boyd
*/
/*****************************************************************************
Name: line_replace
Purpose: Substitutes one line of text for another.
Called by: string_add(string.c) (aedit_builder)olc_act.c.
****************************************************************************/
char *line_replace(char *orig, int line, char *arg3)
{
unsigned int len;
int count = 0;
char *pOut, outbuf[4*MAX_STRING_LENGTH], buf[4*MAX_STRING_LENGTH];
bool copy = TRUE;
strcpy(buf,orig);
outbuf[0] = '\0';
pOut = outbuf;
if (line == 1)
{
*pOut = '\0';
strcat(outbuf, arg3);
pOut += strlen(arg3);
if (*pOut-2 != '\n') *pOut++ = '\n';
if (*pOut-1 != '\r') *pOut++ = '\r';
copy = FALSE;
}
for (len = 0; len < strlen(buf); len++)
{
if (buf[len] == '\r')
{
if (copy) *pOut++ = '\r';
count++;
if (count == line-1)
{
*pOut = '\0';
strcat(outbuf, arg3);
pOut += strlen(arg3);
if (*pOut-2 != '\n') *pOut++ = '\n';
if (*pOut-1 != '\r') *pOut++ = '\r';
copy = FALSE;
}
else if (count == line) copy = TRUE;
}
else
if (copy) *pOut++ = buf[len];
}
*pOut = '\0';
free_string(orig);
return str_dup(outbuf);
}
/*****************************************************************************
Name: count_lines
Purpose: counts the number of lines in the string
Called by: string_add for use in line_delete
*****************************************************************************/
int count_lines( const char *orig )
{
int line;
for( line = 0; *orig; )
{
if ( *orig++ == '\r' )
line++;
}
return line;
}
/*****************************************************************************
Name: line_delete
Purpose: deletes one line of text
Called by: string_add(string.c) (aedit_builder)olc_act.c.
****************************************************************************/
char *line_delete(char *orig, int line)
{
int len, buflen;
int count = 0;
char *pOut, outbuf[4*MAX_STRING_LENGTH], buf[4*MAX_STRING_LENGTH];
strcpy(buf, orig);
buflen = strlen(buf);
outbuf[0] = '\0';
pOut = outbuf;
len = 0;
if (line == 1)
{
*pOut = '\0';
for ( ; buf[len] != '\r'; len++)
continue;
len++;
}
for ( ; len < buflen; len++)
{
if ( buf[len] == '\r')
{
count++;
if (count == line-1)
{
for (len++ ; len < buflen; len++ )
{
if ( buf[len] == '\r' )
{
break;
}
}
*pOut++ = '\r';
}
else
*pOut++ = buf[len];
}
else
*pOut++ = buf[len];
}
*pOut = '\0';
free_string(orig);
return str_dup(outbuf);
}
/*****************************************************************************
Name: line_add
Purpose: adds one line of text at line # specified
Called by: string_add(string.c) (aedit_builder)olc_act.c.
****************************************************************************/
/* The old one was buggy, at lesat for my mud */
/* So I rewrote it. -- Kyle Boyd */
char *line_add(char *orig, int line, char *add)
{
char *string, outbuf[MAX_STRING_LENGTH], buf[MAX_STRING_LENGTH];
int count = 1, pos;
strcpy( buf, orig );
string = buf;
outbuf[0]='\0';
if ( line == 1 )
{
outbuf[0]='\0';
strcat( outbuf, add );
strcat( outbuf, "\n\r" );
strcat( outbuf, orig );
free_string( orig );
return str_dup( outbuf );
}
for( pos = 0; string[pos] != '\0'; pos++ ) {
if( string[pos] == '\n' && string[pos+1] != '\0' ) {
if( string[pos+1] == '\r' && string[pos+2] != '\0' )
{
count++;
if ( count == line )
{
strncat( outbuf, orig, pos+2 );
strcat( outbuf, add );
strcat( outbuf, "\n\r" );
break;
}
}
}
}
for( ; string[pos] != '\0'; pos++ ) {
if( string[pos] == '\n' && string[pos+1] != '\0' ) {
if( string[pos+1] == '\r' )
{
strcat( outbuf, &orig[pos+2] );
free_string( orig );
return str_dup( outbuf );
}
}
}
return orig;
}
/*****************************************************************************
Name: string_edit
Purpose: Clears string and puts player into editing mode.
Called by: none
****************************************************************************/
void string_edit( CHAR_DATA *ch, char **pString )
{
send_to_char( "-========- Entering EDIT Mode -=========-\n\r", ch );
send_to_char( " Type .h on a new line for help\n\r", ch );
send_to_char( " Terminate with a ~ or @ on a blank line.\n\r", ch );
send_to_char( "-=======================================-\n\r", ch );
if ( *pString == NULL )
{
*pString = str_dup( "" );
}
else
{
**pString = '\0';
}
ch->desc->pString = pString;
return;
}
/*****************************************************************************
Name: string_append
Purpose: Puts player into append mode for given string.
Called by: (many)olc_act.c
****************************************************************************/
void string_append( CHAR_DATA *ch, char **pString )
{
send_to_char( "-=======- Entering APPEND Mode -========-\n\r", ch );
send_to_char( " Type .h on a new line for help\n\r", ch );
send_to_char( " Terminate with a ~ or @ on a blank line.\n\r", ch );
send_to_char( "-=======================================-\n\r", ch );
if ( *pString == NULL )
{
*pString = str_dup( "" );
}
show_line_numbers( ch, *pString );
if ( *(*pString + strlen( *pString ) - 1) != '\r' )
send_to_char( "\n\r", ch );
ch->desc->pString = pString;
return;
}
/*****************************************************************************
Name: string_replace
Purpose: Substitutes one string for another.
Called by: string_add(string.c) (aedit_builder)olc_act.c.
****************************************************************************/
char * string_replace( char * orig, char * old, char * new )
{
char xbuf[MAX_STRING_LENGTH];
int i;
xbuf[0] = '\0';
strcpy( xbuf, orig );
if ( strstr( orig, old ) != NULL )
{
i = strlen( orig ) - strlen( strstr( orig, old ) );
xbuf[i] = '\0';
strcat( xbuf, new );
strcat( xbuf, &orig[i+strlen( old )] );
free_string( orig );
orig = NULL;
}
if( orig ) free_string( orig );
return str_dup( xbuf );
}
/*****************************************************************************
Name: string_add
Purpose: Interpreter for string editing.
Called by: game_loop_xxxx(comm.c).
****************************************************************************/
void string_add( CHAR_DATA *ch, char *argument )
{
char arg[MAX_INPUT_LENGTH];
char buf[MAX_STRING_LENGTH];
/*
* Thanks to James Seng
*/
if ( *argument == '~' )
{
ch->desc->pString = NULL;
return;
}
smash_tilde( argument );
if ( *argument == '.' )
{
char arg2 [MAX_INPUT_LENGTH];
char arg3 [MAX_INPUT_LENGTH];
argument = one_argument( argument, arg );
argument = first_arg( argument, arg2, FALSE );
argument = first_arg( argument, arg3, FALSE );
if ( !str_cmp( arg, ".c" ) )
{
send_to_char( "String cleared.\n\r", ch );
**ch->desc->pString = '\0';
return;
}
if ( !str_cmp( arg, ".s" ) )
{
send_to_char( "String so far:\n\r", ch );
show_line_numbers(ch, *ch->desc->pString );
return;
}
if ( !str_cmp( arg, ".r" ) )
{
if ( arg2[0] == '\0' )
{
send_to_char(
"usage: .r \"old string\" \"new string\"\n\r", ch );
return;
}
smash_tilde( arg3 ); /* Just to be sure -- Hugin */
*ch->desc->pString =
string_replace( *ch->desc->pString, arg2, arg3 );
sprintf( buf, "'%s' replaced with '%s'.\n\r", arg2, arg3 );
send_to_char( buf, ch );
return;
}
if ( !str_cmp( arg, ".l" ) )
{
if (!(*ch->desc->pString) || !(*ch->desc->pString[0]))
{
send_to_char("No lines to replace.\n\r",ch);
return;
}
if (!is_number(arg2) || !arg3[0])
{
send_to_char( "usage: .l line# 'new text'\n\r", ch );
return;
}
if (atoi(arg2) < 1)
{
send_to_char("Line numbers start at 1.\n\r",ch);
return;
}
smash_tilde( arg3 );
*ch->desc->pString =
line_replace(*ch->desc->pString, atoi(arg2), arg3);
return;
}
if ( !str_cmp( arg, ".a" ) )
{
if (!(*ch->desc->pString) || !(*ch->desc->pString[0]))
{
send_to_char("No lines to replace.\n\r",ch);
return;
}
if (!is_number(arg2) || !arg3[0])
{
send_to_char( "usage: .a line# 'new text'\n\r", ch );
return;
}
if (atoi(arg2) < 1)
{
send_to_char("Line numbers start at 1.\n\r",ch);
return;
}
smash_tilde( arg3 );
*ch->desc->pString =
line_add(*ch->desc->pString, atoi(arg2), arg3);
return;
}
if ( !str_cmp( arg, ".d" ) )
{
int line;
if ( !(*ch->desc->pString) || !(*ch->desc->pString[0]) )
{
send_to_char("No lines to delete.\n\r", ch);
return;
}
if ( arg2[0]=='\0' )
{
line = count_lines( *ch->desc->pString );
}
else
line = atoi(arg2);
if ( line < 1 )
{
send_to_char("Line numbers start at 1.\n\r",ch);
return;
}
smash_tilde( arg3 );
*ch->desc->pString =
line_delete(*ch->desc->pString, line );
return;
}
if ( !str_cmp( arg, ".f" ) )
{
*ch->desc->pString = format_string( *ch->desc->pString );
send_to_char( "String formatted.\n\r", ch );
return;
}
if ( !str_cmp( arg, ".h" ) )
{
send_to_char( "Sedit help (commands on blank line): \n\r", ch );
send_to_char( ".r 'old' 'new' - replace a substring \n\r", ch );
send_to_char( " (requires '', \"\") \n\r", ch );
send_to_char( ".l line# 'new' - replace a line \n\r", ch );
send_to_char( ".d - delete last line \n\r", ch );
send_to_char( ".d line# - delete a line \n\r", ch );
send_to_char( ".a line# 'new' - add a new line \n\r", ch );
send_to_char( ".h - get help (this info)\n\r", ch );
send_to_char( ".s - show string so far \n\r", ch );
send_to_char( ".f - (word wrap) string \n\r", ch );
send_to_char( ".c - clear string so far \n\r", ch );
send_to_char( "@ - end string \n\r", ch );
return;
}
send_to_char( "SEdit: Invalid dot command.\n\r", ch );
return;
}
if ( *argument == '~' || *argument == '@' )
{
ch->desc->pString = NULL;
return;
}
strcpy( buf, *ch->desc->pString );
/*
* Truncate strings to MAX_STRING_LENGTH.
* --------------------------------------
*/
if ( strlen( buf ) + strlen( argument ) >= ( MAX_STRING_LENGTH - 4 ) )
{
send_to_char( "String too long, last line skipped.\n\r", ch );
/* Force character out of editing mode. */
ch->desc->pString = NULL;
return;
}
/*
* Ensure no tilde's inside string.
* --------------------------------
*/
smash_tilde( argument );
strcat( buf, argument );
strcat( buf, "\n\r" );
free_string( *ch->desc->pString );
*ch->desc->pString = str_dup( buf );
return;
}
/*
* Thanks to Kalgen for the new procedure (no more bug!)
* Original wordwrap() written by Surreality.
*/
/*****************************************************************************
Name: format_string
Purpose: Special string formating and word-wrapping.
Called by: string_add(string.c) (many)olc_act.c
****************************************************************************/
char *format_string( char *oldstring /*, bool fSpace */)
{
char xbuf[MAX_STRING_LENGTH];
char xbuf2[MAX_STRING_LENGTH];
char *rdesc;
int i=0;
bool cap=TRUE;
xbuf[0]=xbuf2[0]=0;
i=0;
for (rdesc = oldstring; *rdesc; rdesc++)
{
if (*rdesc=='\n')
{
if (xbuf[i-1] != ' ')
{
xbuf[i]=' ';
i++;
}
}
else if (*rdesc=='\r') ;
else if (*rdesc==' ')
{
if (xbuf[i-1] != ' ')
{
xbuf[i]=' ';
i++;
}
}
else if (*rdesc==')')
{
if (xbuf[i-1]==' ' && xbuf[i-2]==' ' &&
(xbuf[i-3]=='.' || xbuf[i-3]=='?' || xbuf[i-3]=='!'))
{
xbuf[i-2]=*rdesc;
xbuf[i-1]=' ';
xbuf[i]=' ';
i++;
}
else
{
xbuf[i]=*rdesc;
i++;
}
}
else if (*rdesc=='.' || *rdesc=='?' || *rdesc=='!') {
if (xbuf[i-1]==' ' && xbuf[i-2]==' ' &&
(xbuf[i-3]=='.' || xbuf[i-3]=='?' || xbuf[i-3]=='!')) {
xbuf[i-2]=*rdesc;
if (*(rdesc+1) != '\"')
{
xbuf[i-1]=' ';
xbuf[i]=' ';
i++;
}
else
{
xbuf[i-1]='\"';
xbuf[i]=' ';
xbuf[i+1]=' ';
i+=2;
rdesc++;
}
}
else
{
xbuf[i]=*rdesc;
if (*(rdesc+1) != '\"')
{
xbuf[i+1]=' ';
xbuf[i+2]=' ';
i += 3;
}
else
{
xbuf[i+1]='\"';
xbuf[i+2]=' ';
xbuf[i+3]=' ';
i += 4;
rdesc++;
}
}
cap = TRUE;
}
else
{
xbuf[i]=*rdesc;
if ( cap )
{
cap = FALSE;
xbuf[i] = UPPER( xbuf[i] );
}
i++;
}
}
xbuf[i]=0;
strcpy(xbuf2,xbuf);
rdesc=xbuf2;
xbuf[0]=0;
for ( ; ; )
{
for (i=0; i<77; i++)
{
if (!*(rdesc+i)) break;
}
if (i<77)
{
break;
}
for (i=(xbuf[0]?76:73) ; i ; i--)
{
if (*(rdesc+i)==' ') break;
}
if (i)
{
*(rdesc+i)=0;
strcat(xbuf,rdesc);
strcat(xbuf,"\n\r");
rdesc += i+1;
while (*rdesc == ' ') rdesc++;
}
else
{
bug ("No spaces", 0);
*(rdesc+75)=0;
strcat(xbuf,rdesc);
strcat(xbuf,"-\n\r");
rdesc += 76;
}
}
while (*(rdesc+i) && (*(rdesc+i)==' '||
*(rdesc+i)=='\n'||
*(rdesc+i)=='\r'))
i--;
*(rdesc+i+1)=0;
strcat(xbuf,rdesc);
if (xbuf[strlen(xbuf)-2] != '\n')
strcat(xbuf,"\n\r");
free_string(oldstring);
return(str_dup(xbuf));
}
/*
* Used above in string_add. Because this function does not
* modify case if fCase is FALSE and because it understands
* parenthesis, it would probably make a nice replacement
* for one_argument.
*/
/*****************************************************************************
Name: first_arg
Purpose: Pick off one argument from a string and return the rest.
Understands quates, parenthesis (barring ) ('s) and
percentages.
Called by: string_add(string.c)
****************************************************************************/
char *first_arg( char *argument, char *arg_first, bool fCase )
{
char cEnd;
while ( *argument == ' ' )
argument++;
cEnd = ' ';
if ( *argument == '\'' || *argument == '"'
|| *argument == '%' || *argument == '(' )
{
if ( *argument == '(' )
{
cEnd = ')';
argument++;
}
else cEnd = *argument++;
}
while ( *argument != '\0' )
{
if ( *argument == cEnd )
{
argument++;
break;
}
if ( fCase ) *arg_first = LOWER(*argument);
else *arg_first = *argument;
arg_first++;
argument++;
}
*arg_first = '\0';
while ( *argument == ' ' )
argument++;
return argument;
}
/*
* Used in olc_act.c for aedit_builders.
*/
char * string_unpad( char * argument )
{
char buf[MAX_STRING_LENGTH];
char *s;
s = argument;
while ( *s == ' ' )
s++;
strcpy( buf, s );
s = buf;
if ( *s != '\0' )
{
while ( *s != '\0' )
s++;
s--;
while( *s == ' ' )
s--;
s++;
*s = '\0';
}
free_string( argument );
return str_dup( buf );
}
/*
* Same as capitalize but changes the pointer's data.
* Used in olc_act.c in aedit_builder.
*/
char * string_proper( char * argument )
{
char *s;
s = argument;
while ( *s != '\0' )
{
if ( *s != ' ' )
{
*s = UPPER(*s);
while ( *s != ' ' && *s != '\0' )
s++;
}
else
{
s++;
}
}
return argument;
}
/* This functions by Kyle Boyd. */
/* This function assumes that the end of line is marked with a \n\r */
/* If you see any bugs, check to see if all of your strings end like that. */
void show_line_numbers( CHAR_DATA *ch, const char * oldstring )
{
char * string;
char newstring[MAX_STRING_LENGTH];
char buf[8];
char buf2[8];
int line;
if ( oldstring[0]=='\0' )
{
send_to_char("\n\r", ch);
return;
}
string = str_dup( oldstring );
newstring[0] = '\0';
strcat( newstring, " 1 ");
for( line = 2 ; *string != '\0' ; string++ )
{
if ( *string == '\n' )
{
string++;
string++;
if (*string == '\0')
break;
strcat( newstring, "\n\r");
sprintf( buf2, "%2d ", line );
line++;
strcat( newstring, buf2 );
}
buf[0]= *string;
buf[1]= '\0';
strcat( newstring, buf );
}
strcat( newstring, "\n\r");
send_to_char(newstring, ch);
free_string( string);
return;
}