From a710f6ffb3edb43946b3008dfd5f1eb6ee59d1b9 Mon Sep 17 00:00:00 2001
From: Rob Swindell <rob@synchro.net>
Date: Wed, 23 Feb 2022 00:13:40 -0800
Subject: [PATCH] Add strip_cp437_graphics() and have strip_ctrl() remove DEL
chars too
strip_cp437_graphics() is like strip_exascii(), except it'll leave the foreign language characters and math symbols intact (removing just the common "block" and "line-drawing" characters).
DEL (0x7F) is a control character too, so have strip_ctrl() remove it.
---
src/sbbs3/str_util.c | 16 +++++++++++++++-
src/sbbs3/str_util.h | 1 +
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/sbbs3/str_util.c b/src/sbbs3/str_util.c
index d67caf8346..8918635dfc 100644
--- a/src/sbbs3/str_util.c
+++ b/src/sbbs3/str_util.c
@@ -68,7 +68,7 @@ char* strip_ctrl(const char *str, char* dest)
if(str[i]=='<' && j)
j--;
}
- else if((uchar)str[i]>=' ')
+ else if((uchar)str[i]>=' ' && str[i] != DEL)
dest[j++]=str[i];
}
dest[j]=0;
@@ -215,6 +215,20 @@ char* strip_exascii(const char *str, char* dest)
return dest;
}
+char* strip_cp437_graphics(const char *str, char* dest)
+{
+ int i,j;
+
+ if(dest==NULL && (dest=strdup(str))==NULL)
+ return NULL;
+ for(i=j=0;str[i];i++)
+ if((uchar)str[i] <= (uchar)CP437_INVERTED_EXCLAMATION_MARK
+ || (uchar)str[i] >= (uchar)CP437_GREEK_SMALL_LETTER_ALPHA)
+ dest[j++]=str[i];
+ dest[j]=0;
+ return dest;
+}
+
char* strip_space(const char *str, char* dest)
{
int i,j;
diff --git a/src/sbbs3/str_util.h b/src/sbbs3/str_util.h
index a772c591f8..24bd3f1d2e 100644
--- a/src/sbbs3/str_util.h
+++ b/src/sbbs3/str_util.h
@@ -55,6 +55,7 @@ DLLEXPORT str_list_t trashcan_list(scfg_t* cfg, const char* name);
DLLEXPORT char * convert_ansi(const char* src, char* dest, size_t, int width, BOOL ice_color);
DLLEXPORT char * strip_ansi(char* str);
DLLEXPORT char * strip_exascii(const char *str, char* dest);
+DLLEXPORT char * strip_cp437_graphics(const char *str, char* dest);
DLLEXPORT char * strip_space(const char *str, char* dest);
DLLEXPORT char * strip_ctrl(const char *str, char* dest);
DLLEXPORT char * strip_char(const char* str, char* dest, char);
--
GitLab