windows-nt/Source/XPSP1/NT/sdktools/mep/extens/ulcase/ulcase.c

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2020-09-26 03:20:57 -05:00
#define EXT_ID " ulcase ver 2.01 "##__DATE__##" "##__TIME__
/*
** ULcase Z extension
**
** History:
** 30-Mar-1988 Broken out of "myext"
** 12-Sep-1988 mz Made WhenLoaded match declaration
*/
#include <ctype.h>
#include "ext.h"
#ifndef TRUE
#define TRUE -1
#define FALSE 0
#endif
#ifndef NULL
#define NULL ((char *) 0)
#endif
flagType pascal ulcase (ARG *, int, int, int);
/*************************************************************************
**
** id
** identify the source of the operation being performed
*/
void id(char *pszFcn)
{
char buf[80]; /* message buffer */
strcpy (buf,pszFcn); /* start with message */
strcat (buf,EXT_ID); /* append version */
DoMessage (buf);
}
/*************************************************************************
**
** ucase
** convert arg to upper case.
*/
flagType pascal EXTERNAL
ucase (
CMDDATA argData,
ARG far *pArg,
flagType fMeta
)
{
(void)argData;
(void)fMeta;
id("ucase:");
return ulcase (pArg, 'a', 'z', 'A'-'a');
}
/*************************************************************************
**
** lcase
** convert arg to lower case.
*/
flagType pascal EXTERNAL
lcase (
CMDDATA argData,
ARG far *pArg,
flagType fMeta
)
{
(void)argData;
(void)fMeta;
id("lcase:");
return ulcase (pArg, 'A', 'Z', 'a'-'A');
}
/*
** ulcase
** convert arg case.
*/
flagType pascal ulcase (pArg, cLow, cHigh, cAdj)
ARG *pArg; /* argument data */
int cLow; /* low char of range to check for */
int cHigh; /* high char of range to check for */
int cAdj; /* adjustment to make */
{
PFILE pFile;
COL xStart;
LINE yStart;
COL xEnd;
LINE yEnd;
int i;
COL xT;
char buf[BUFLEN];
pFile = FileNameToHandle ("", "");
switch (pArg->argType) {
case NOARG: /* case switch entire line */
xStart = 0;
xEnd = 32765;
yStart = yEnd = pArg->arg.noarg.y;
break;
case NULLARG: /* case switch to EOL */
xStart = pArg->arg.nullarg.x;
xEnd = 32765;
yStart = yEnd = pArg->arg.nullarg.y;
break;
case LINEARG: /* case switch line range */
xStart = 0;
xEnd = 32765;
yStart = pArg->arg.linearg.yStart;
yEnd = pArg->arg.linearg.yEnd;
break;
case BOXARG: /* case switch box */
xStart = pArg->arg.boxarg.xLeft;
xEnd = pArg->arg.boxarg.xRight;
yStart = pArg->arg.boxarg.yTop;
yEnd = pArg->arg.boxarg.yBottom;
break;
}
while (yStart <= yEnd) {
i = GetLine (yStart, buf, pFile);
xT = xStart; /* start at begin of box*/
while ((xT <= i) && (xT <= xEnd)) { /* while in box */
if ((int)buf[xT] >= cLow && (int)buf[xT] <= cHigh)
buf[xT] += (char)cAdj;
xT++;
}
PutLine (yStart++, buf, pFile);
}
return TRUE;
}
/*
** switch communication table to Z
*/
struct swiDesc swiTable[] = {
{0, 0, 0}
};
/*
** command communication table to Z
*/
struct cmdDesc cmdTable[] = {
{ "ucase", ucase, 0, MODIFIES | KEEPMETA | NOARG | BOXARG | NULLARG | LINEARG },
{ "lcase", lcase, 0, MODIFIES | KEEPMETA | NOARG | BOXARG | NULLARG | LINEARG },
{0, 0, 0}
};
/*
** WhenLoaded
** Executed when these extensions get loaded. Identify self & assign keys.
*/
void EXTERNAL WhenLoaded () {
id("case conversion:");
SetKey ("ucase", "alt+u");
SetKey ("lcase", "alt+l");
}