Category : C Source Code
Archive   : SMALLC.ZIP
Filename : FORMAT0.C

/* text formatter transcribed from the book
* Software Tools by Kernighan and Plauger
*
* Source: format0.c
* Version: Jan. 1, 1980.
*/


/* Define global constants */


#define PAGEWIDTH 60 /* default page width */
#define PAGELEN 66 /* default page length */
#define MAXLINE 255 /* max size of output line */
#define INSIZE 255 /* max size of input lines */
#define MAXOUT 255 /* max size of output buffer */


/* Define special characters */


#define PAGECHAR '#' /* page number escape char */
#define SQUOTE 39 /* single quote */
#define DQUOTE 34 /* double quote */
#define TAB 9 /* tab character */
#define BACKSPACE 8 /* back space */
#define UNDERLINE 95 /* underline character */
#define NEWLINE 13 /* end of line character */
#define EOS 0 /* end of string char */
#define CR 13 /* carriage return */
#define LF 10 /* line feed */


/* Define miscellaneous constants */


#define HUGE 32000
#define NULL 0
#define YES 1
#define NO 2
#define OK 1
#define EOF 3


/* Define global variables for user parameters.
* From common block /cparam/
* See init() for initial settings of these variables.
*/


int fill; /* in fill mode if YES */
int lsval; /* current line spacing */
int inval; /* current indent; >= 0 */
int rmval; /* current right margin */
int tival; /* current temporarty indent */
int ceval; /* number of lines to center */
int ulval; /* number of lines to underline */


/* Define global variables describing current page.
* From common block /cpage/
* See init() for initial settings of these variables.
*/


int curpag; /* current output page number */
int newpag; /* next output page number */
int lineno; /* next line to be printed */
int plval; /* page length in lines */
int m1val; /* top margin, including header */
int m2val; /* margin after header */
int m3val; /* margin after last text line */
int m4val; /* bottom margin, including footer */
int bottom; /* last live line on page: */
/* = plval - m3val - m4val */
char header[MAXLINE]; /* top of page title */
char footer[MAXLINE]; /* bottom of page title */


/* Define variables needed for file I/O routines */


int ineof; /* input file EOF flag */


/* Define global variables associated with
* the current output line.
* From common block /cout/.
* See init() for initial settings.
*/


int outp; /* index into outbuf */
int outw; /* width of text in outbuf */
int outwds; /* number of words in outbuf */
char outbuf[MAXOUT]; /* lines to be filled go here */


/* Define direction variable for spread() */


int dir; /* directions flag */