Back (Current repo: scraps)

commit 1814824a2e55a2bd088c2040b9ac4edd7e36627e
parent 9ba75222b8ca59ab61ed77993a59cde8fc84fae7
Author: root <root>
Date:   Mon, 21 Apr 2025 15:02:13 +0200

add some functions

Diffstat:
A
sed/flatten_newlines.sh
 | 
18
++++++++++++++++++
A
sed/replace_match_and_next2.sh
 | 
33
+++++++++++++++++++++++++++++++++

2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/sed/flatten_newlines.sh b/sed/flatten_newlines.sh
@@ -0,0 +1,18 @@
+function flatten_newlines() {
+
+    FILE=$1
+
+    if [ -z $FILE ]; then
+        echo "A file is needed"
+        return 1
+    fi
+
+    sed ':m;$!{N;s/\n/ /;bm;}' "$FILE"
+
+    #Explanation for the random wanderer looking in here:
+    #:m     ->         define label m
+    #$!{}   ->         If current line is not the last line
+    #N      ->         append next line to pattern space, aka join the lines
+    #s\n/ / ->         replace the newline between them with a space
+    #b m    ->         loop back to label m
+}
diff --git a/sed/replace_match_and_next2.sh b/sed/replace_match_and_next2.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+function replace_match_and_next2() {
+
+    PAT=$1
+    FILE=$2
+
+    if [ -z $PAT ]; then
+        echo "A pattern is needed";
+        return 1;
+    fi
+
+    if [ -z $FILE ]; then
+        echo "A file is needed";
+        return 1;
+    fi
+
+    sed -n -e '/'$PAT'/!p;: m' -e '//{' -e '$!{' -e 'n;n;b m' -e '}' -e'}' $FILE
+
+    #Explanation for the random wanderer looking in here:
+    #sed -n \
+    #  -e '/'$PAT'/!p'       print lines that do NOT match $PAT
+    #  -e ':m'                  define label "m"
+    #  -e '//{'                 if line matches $PAT again
+    #  -e '  $!{'               and it's NOT the last line
+    #  -e '    n; n; b m'       skip next two lines and go back to label "m"
+    #  -e '  }'                 end inner conditional
+    #  -e '}'                   end outer conditional
+
+    #sometimes this can be useful for cutting parts from responses that are not needed
+    #but have no control over
+
+}