Make strdump(), csidump(), print to stderr - st - Simple Terminal
       
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       ---
 (DIR) commit 902a392b905107c7b8a318c103837c54e47a068e
 (DIR) parent 8c99915608beee03eca3bae6ed92264a0da87e2f
 (HTM) Author: pl@ninthfloor.org <pl@ninthfloor.org>
       Date:   Fri, 11 Nov 2016 17:45:52 +0100
       
       Make strdump(), csidump(), print to stderr
       
       The two functions strdump(), csidump() are called to show errors and
       their output is introduced by a message printed to stderr. Thus, it it
       more consistent to have them print to stderr.
       
       Moreover stderr is unbuffered (at least on Linux), making problems
       immediately visible.
       
       Diffstat:
         st.c                                |      29 +++++++++++++++--------------
       
       1 file changed, 15 insertions(+), 14 deletions(-)
       ---
 (DIR) diff --git a/st.c b/st.c
       @@ -2490,22 +2490,22 @@ csidump(void)
                int i;
                uint c;
        
       -        printf("ESC[");
       +        fprintf(stderr, "ESC[");
                for (i = 0; i < csiescseq.len; i++) {
                        c = csiescseq.buf[i] & 0xff;
                        if (isprint(c)) {
       -                        putchar(c);
       +                        putc(c, stderr);
                        } else if (c == '\n') {
       -                        printf("(\\n)");
       +                        fprintf(stderr, "(\\n)");
                        } else if (c == '\r') {
       -                        printf("(\\r)");
       +                        fprintf(stderr, "(\\r)");
                        } else if (c == 0x1b) {
       -                        printf("(\\e)");
       +                        fprintf(stderr, "(\\e)");
                        } else {
       -                        printf("(%02x)", c);
       +                        fprintf(stderr, "(%02x)", c);
                        }
                }
       -        putchar('\n');
       +        putc('\n', stderr);
        }
        
        void
       @@ -2594,24 +2594,25 @@ strdump(void)
                int i;
                uint c;
        
       -        printf("ESC%c", strescseq.type);
       +        fprintf(stderr, "ESC%c", strescseq.type);
                for (i = 0; i < strescseq.len; i++) {
                        c = strescseq.buf[i] & 0xff;
                        if (c == '\0') {
       +                        putc('\n', stderr);
                                return;
                        } else if (isprint(c)) {
       -                        putchar(c);
       +                        putc(c, stderr);
                        } else if (c == '\n') {
       -                        printf("(\\n)");
       +                        fprintf(stderr, "(\\n)");
                        } else if (c == '\r') {
       -                        printf("(\\r)");
       +                        fprintf(stderr, "(\\r)");
                        } else if (c == 0x1b) {
       -                        printf("(\\e)");
       +                        fprintf(stderr, "(\\e)");
                        } else {
       -                        printf("(%02x)", c);
       +                        fprintf(stderr, "(%02x)", c);
                        }
                }
       -        printf("ESC\\\n");
       +        fprintf(stderr, "ESC\\\n");
        }
        
        void