prepare to introduce output formats

main.c

@@ -53,8 +53,6 @@ int main(int argc, char **argv){
     }
     strcpy(conndev.eol, EOL);
     strcpy(conndev.seol, seol);
-    int eollen = strlen(EOL);
-    conndev.eollen = eollen;
     DBG("eol: %s, seol: %s", conndev.eol, conndev.seol);
     if(!G->ttyname){
         WARNX("You should point name");
@@ -86,17 +84,7 @@ int main(int argc, char **argv){
             int l;
             char *buf = ReadData(&l);
             if(buf && l > 0){
-                char *eol = NULL, *estr = buf + l;
+                ShowData(buf);
-                do{
-                    eol = strstr(buf, EOL);
-                    if(eol){
-                        *eol = 0;
-                        ShowData(buf);
-                        buf = eol + eollen;
-                    }else{
-                        ShowData(buf);
-                    }
-                }while(eol && buf < estr);
             }else if(l < 0){
                 pthread_mutex_unlock(&conndev.mutex);
                 ERRX("Device disconnected");

string_functions.c

@@ -17,14 +17,20 @@
  */
 
 #include <stdio.h>
+#include <string.h>
 
 #include "string_functions.h"
 
+// end of line - for text mode
+static char *eol = "\n";
+static int eollen = 1;
+
 // read text string and throw out all < 31 and > 126
-static inline const char *omit_nonletters(const char *line){
+static inline const char *omit_nonletters(disptype input_type, const char *line){
+    int start = (input_type == DISP_TEXT) ? 31 : 32; // remove spaces for RAW and HEX modes
     while(*line){
         char c = *line;
-        if(c > 31 && c < 127) break;
+        if(c > start && c < 127) break;
         ++line;
     }
     return line;
@@ -163,7 +169,7 @@ int convert_and_send(disptype input_type, const char *line){
     static char *buf = NULL;
     static size_t bufsiz = 0;
     size_t curpos = 0; // position in `buf`
-    line = omit_nonletters(line);
+    line = omit_nonletters(input_type, line);
     while(*line){
         if(curpos >= bufsiz){ // out ouptut buffer can't be larger than input
             bufsiz += BUFSIZ;
@@ -204,17 +210,28 @@ int convert_and_send(disptype input_type, const char *line){
                 return 0; // unknown display type
         }
         if(ch > -1) buf[curpos++] = ch;
-        line = omit_nonletters(line);
+        line = omit_nonletters(input_type, line);
     }
     // now insert EOL in text mode
     if(input_type == DISP_TEXT){
-        if(curpos+2 >= bufsiz){
+        if(curpos+eollen >= bufsiz){
             bufsiz += BUFSIZ;
             buf = realloc(buf, bufsiz);
         }
-        int l; char *e = geteol(&l);
+        snprintf(buf+curpos, eollen+1, "%s", eol);
-        snprintf(buf+curpos, l, "%s", e);
+        curpos += eollen;
-        curpos += l;
+        /*snprintf(buf+curpos, 7, "_TEST_");
+        curpos += 6;*/
     }
     return SendData(buf, curpos);
 }
+
+/**
+ * @brief changeeol - set EOL to given
+ * @param e - new end of line for text mode
+ * WARNING! This function doesn't call free(), so don't call it more than once
+ */
+void changeeol(const char *e){
+    eollen = strlen(e);
+    eol = strdup(e);
+}

string_functions.h

@@ -21,3 +21,4 @@
 #include "ncurses_and_readline.h"
 
 int convert_and_send(disptype input_type, const char *line);
+void changeeol(const char *e);

ttysocket.c

@@ -29,6 +29,7 @@
 #include <sys/un.h>  // unix socket
 
 #include "dbg.h"
+#include "string_functions.h"
 #include "ttysocket.h"
 
 static int sec = 0, usec = 100; // timeout
@@ -77,45 +78,6 @@ static int waittoread(int fd){
     return 0;
 }
 
-// substitute all EOL's by '\n'
-static size_t rmeols(){
-    if(!device){
-        DBG("d is NULL");
-        return 0;
-    }
-    TTY_descr2 *D = device->dev;
-    if(!D || D->comfd < 0){
-        DBG("D bad");
-        return 0;
-    }
-    if(0 == strcmp(device->eol, "\n")){
-        DBG("No subs need");
-        return D->buflen; // don't need to do this
-    }
-    int L = strlen(D->buf);
-    char *newbuf = MALLOC(char, L), *ptr = D->buf, *eptr = D->buf + L;
-    while(ptr < eptr){
-        char *eol = strstr(ptr, device->eol);
-        if(eol){
-            eol[0] = '\n';
-            eol[1] = 0;
-        }
-        strcat(newbuf, ptr);
-        if(!eol) break;
-        ptr = eol + device->eollen;
-    }
-    strcpy(D->buf, newbuf);
-    FREE(newbuf);
-    D->buflen = strlen(D->buf);
-    return D->buflen;
-}
-
-char *geteol(int *s){
-    if(!device) return NULL;
-    *s = device->eollen;
-    return device->eol;
-}
-
 // get data drom TTY
 static char *getttydata(int *len){
     if(!device || !device->dev) return NULL;
@@ -138,15 +100,11 @@ static char *getttydata(int *len){
         }
         ptr += l; L += l;
         length -= l;
-        if(L >= device->eollen && 0 == strcmp(&ptr[-(device->eollen)], device->eol)){ // found end of line
-            break;
-        }
     }while(length);
     D->buflen = L;
     D->buf[L] = 0;
     if(len) *len = L;
     if(!L) return NULL;
-    rmeols(device);
     DBG("buffer len: %zd, content: =%s=", D->buflen, D->buf);
     return D->buf;
 }
@@ -163,7 +121,6 @@ static char *getsockdata(int *len){
             ptr = D->buf;
             ptr[n] = 0;
             D->buflen = n;
-            n = rmeols(device);
             DBG("got %d: ..%s..", n, ptr);
         }else{
             DBG("Got nothing");
@@ -389,7 +346,8 @@ static TTY_descr2* opentty(){
     }
     descr->tty = descr->oldtty;
     descr->tty.c_lflag = 0; // ~(ICANON | ECHO | ECHOE | ISIG)
-    descr->tty.c_iflag = 0;
+    descr->tty.c_iflag = 0; // don't do any changes in input stream
+    descr->tty.c_oflag = 0; // don't do any changes in output stream
     descr->tty.c_cflag = BOTHER | flags |CREAD|CLOCAL;
     descr->tty.c_ispeed = device->speed;
     descr->tty.c_ospeed = device->speed;
@@ -399,10 +357,6 @@ static TTY_descr2* opentty(){
     }
     ioctl(descr->comfd, TCGETS2, &descr->tty);
     device->speed = descr->tty.c_ispeed;
-#ifdef EBUG
-    printf("ispeed: %d, ospeed: %d, cflag=%d (BOTHER=%d)\n", descr->tty.c_ispeed, descr->tty.c_ospeed, descr->tty.c_cflag&CBAUD, BOTHER);
-    if(system("stty -F /dev/ttyUSB0")) WARN("system()");
-#endif
     return descr;
 someerr:
     FREE(descr->format);
@@ -453,6 +407,7 @@ int opendev(chardevice *d, char *path){
             return FALSE;
         }
     }
+    changeeol(device->eol); // allow string functions to know EOL
     return TRUE;
 }
 

ttysocket.h

@@ -53,10 +53,8 @@ typedef struct{
     pthread_mutex_t mutex;      // reading/writing mutex
     char eol[3];                // end of line
     char seol[5];               // `eol` with doubled backslash (for print @ screen)
-    int eollen;                 // length of `eol`
 } chardevice;
 
-char *geteol(int *s);
 char *ReadData(int *l);
 int SendData(const char *data, size_t len);
 void settimeout(int tms);