Merge commit 'a27498203e5d589514f082a0fcdcca53e31c595e' into cgilite

[lobster] / pdiread.sh

diff --git a/pdiread.sh b/pdiread.sh
index 8118318d3d4bdd4e2793d468c037b28b5006588f..58baa88dac998826f5bb886b882bb322839a9459 100755 (executable)
--- a/pdiread.sh
+++ b/pdiread.sh
@@ -32,7 +32,7 @@ pdi_load() {
   # Usage example:
   # data="$(pdi_load file.vcf)"
 
-  sed -En '
+  sed -srn '
     # === Read entire file into buffer ===
     :X $bY; N; bX; :Y s;^.*$;\n&\n;;
 
@@ -100,7 +100,34 @@ pdi_load() {
     # === Update obsolete LABEL property ===
     s;\nLABEL((\;[A-Za-z0-9-]+|\;[A-Za-z0-9-]+=([^;,:"]+|"[^"]+")(,[^;,:"]+|,"[^"]+")*)*):(.*)\n;\nADR\1\;LABEL="\5":\n;g;
 
-    p;' "$1"
+    p;' "$@"
+}
+
+pdi_escape(){
+  local in out=''
+  for in in "$@"; do
+    out="${out}${out:+;}"
+    while [ "$in" ]; do case $in in
+      \\*) out="${out}\\\\"; in="${in#\\}" ;;
+      ,*) out="${out}\\,"; in="${in#,}" ;;
+      \;*) out="${out}\\;"; in="${in#;}" ;;
+      "$BR"*) out="${out}\\n"; in="${in#${BR}}" ;;
+      *) out="${out}${in%%[\\,;${BR}]*}"; in="${in#"${in%%[\\,;${BR}]*}"}" ;;
+    esac; done
+  done
+  printf '%s\n' "$out"
+}
+
+pdi_unescape(){
+  local in out=''
+  [ $# -gt 0 ] && in="$*" || in="$(cat)"
+  while [ "$in" ]; do case $in in
+    \\\\*) out="${out}\\"; in="${in#\\\\}" ;;
+    \\n*) out="${out}${BR}"; in="${in#\\n}" ;;
+    \\*) in="${in#\\}" ;;
+    *) out="${out}${in%%\\*}"; in="${in#"${in%%\\*}"}" ;;
+  esac; done
+  printf '%s\n' "$out"
 }
 
 pdi_count(){