From e0c94ac47a4ec4378f1341158d82a6af3ffe4c96 Mon Sep 17 00:00:00 2001
From: jahoti <jahoti@tilde.team>
Date: Wed, 13 Oct 2021 00:00:00 +0000
Subject: Add VPATH and Haketilo version to the makefile as part of configure.

---
 shell_utils.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'shell_utils.sh')

diff --git a/shell_utils.sh b/shell_utils.sh
index 30dfead..5fd24ff 100644
--- a/shell_utils.sh
+++ b/shell_utils.sh
@@ -43,3 +43,16 @@ map_del() {
 sanitize() {
     echo "$1" | tr /.- _
 }
+
+escape_regex_special() {
+    ech "$1" | sed 's/\([]\.*?{},()[-]\)/\\\1/g'
+}
+
+# Note: We don't actually parse JSON. We extract needed keys with sed regexes
+# which does not work in the general case but is sufficient for now.
+get_json_key() {
+    local KEY_REG="$(escape_regex_special "$1")"
+    ech "$2" |
+	sed 's/\(.*"'"$KEY_REG"'"[[:space:]]*:[[:space:]]*"\([^"]*\)"\)\?.*/\2/' |
+	grep . | head -1
+}
-- 
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