From ff19d727b7c74d621072faa51f4f77122d3ea696 Mon Sep 17 00:00:00 2001
From: "M.Sz" <gucio321@protonmail.com>
Date: Mon, 17 Apr 2023 07:06:29 +0000
Subject: [PATCH 1/5] Revert "Revert "generattor: add --cflags command line
 flag""

This reverts commit 2ae35c8b4673a6f9b683b4ac8d838fd3f34b4237.
---
 generator/generator.sh | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/generator/generator.sh b/generator/generator.sh
index e2840c5..794efe1 100755
--- a/generator/generator.sh
+++ b/generator/generator.sh
@@ -16,10 +16,38 @@
 # arg[2] options as words in one string: internal for imgui_internal generation, freetype for freetype generation, comments for comments generation, nochar to skip char* function version, noimstrv to skip imstrv
 # examples: "" "internal" "internal freetype" "comments internal"
 # arg[3..n] name of implementations to generate and/or CLFLAGS (e.g. -DIMGUI_USER_CONFIG or -DIMGUI_USE_WCHAR32)
+#
+#!/bin/bash
+
+# parse command line arguments
+# ref: https://stackoverflow.com/questions/192249/how-do-i-parse-command-line-arguments-in-bash
+POSITIONAL_ARGS=()
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -c|--cflags)
+      CFLAGS="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -*|--*)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+    *)
+      POSITIONAL_ARGS+=("$1") # save positional arg
+      shift # past argument
+      ;;
+  esac
+done
+
+set -- "${POSITIONAL_ARGS[@]}" # restore positional parameters
 
 if [[ "$OSTYPE" == "cygwin" || "$OSTYPE" == "msys" || "$OSTYPE" == "win32" ]];
 then
   suffix='.exe'
 fi
 
-luajit$suffix ./generator.lua gcc "internal noimstrv" glfw opengl3 opengl2 sdl2 "$@"
+echo "CFLAGS: " $CFLAGS
+
+luajit$suffix ./generator.lua gcc "internal noimstrv" glfw opengl3 opengl2 sdl2 $CFLAGS

From fa81118e09c4a7285a8e00024ac246e079729221 Mon Sep 17 00:00:00 2001
From: "M.Sz" <gucio321@protonmail.com>
Date: Mon, 17 Apr 2023 07:13:26 +0000
Subject: [PATCH 2/5] generator: add -t/--tagret options

---
 generator/generator.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/generator/generator.sh b/generator/generator.sh
index 794efe1..4935806 100755
--- a/generator/generator.sh
+++ b/generator/generator.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/bin/bash
 
 # this script must be executed in this directory
 # all the output goes to generator/output folder
@@ -30,6 +30,11 @@ while [[ $# -gt 0 ]]; do
       shift # past argument
       shift # past value
       ;;
+    -t|--target)
+      TARGETS="$2"
+      shift # past argument
+      shift # past value
+      ;;
     -*|--*)
       echo "Unknown option $1"
       exit 1
@@ -49,5 +54,6 @@ then
 fi
 
 echo "CFLAGS: " $CFLAGS
+echo "TARGETS: " $TARGETS
 
-luajit$suffix ./generator.lua gcc "internal noimstrv" glfw opengl3 opengl2 sdl2 $CFLAGS
+luajit$suffix ./generator.lua gcc "internal noimstrv $TARGETS" glfw opengl3 opengl2 sdl2 $CFLAGS

From e2093ffbc111fd49b766d4d3f0dc0b6239511d2e Mon Sep 17 00:00:00 2001
From: "M.Sz" <gucio321@protonmail.com>
Date: Mon, 17 Apr 2023 07:15:31 +0000
Subject: [PATCH 3/5] generator: remove unnecessary header comment

---
 generator/generator.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/generator/generator.sh b/generator/generator.sh
index 4935806..5a022ee 100755
--- a/generator/generator.sh
+++ b/generator/generator.sh
@@ -17,7 +17,6 @@
 # examples: "" "internal" "internal freetype" "comments internal"
 # arg[3..n] name of implementations to generate and/or CLFLAGS (e.g. -DIMGUI_USER_CONFIG or -DIMGUI_USE_WCHAR32)
 #
-#!/bin/bash
 
 # parse command line arguments
 # ref: https://stackoverflow.com/questions/192249/how-do-i-parse-command-line-arguments-in-bash

From 0c22b34cb6005af034f2ac3dd18129228e656886 Mon Sep 17 00:00:00 2001
From: "M.Sz" <gucio321@protonmail.com>
Date: Mon, 17 Apr 2023 10:13:09 +0000
Subject: [PATCH 4/5] generator: set default values

---
 generator/generator.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/generator/generator.sh b/generator/generator.sh
index 5a022ee..cc92ac5 100755
--- a/generator/generator.sh
+++ b/generator/generator.sh
@@ -22,6 +22,9 @@
 # ref: https://stackoverflow.com/questions/192249/how-do-i-parse-command-line-arguments-in-bash
 POSITIONAL_ARGS=()
 
+TARGETS="internal noimstrv"
+CFLAGS="glfw opengl3 opengl2 sdl2"
+
 while [[ $# -gt 0 ]]; do
   case $1 in
     -c|--cflags)
@@ -55,4 +58,4 @@ fi
 echo "CFLAGS: " $CFLAGS
 echo "TARGETS: " $TARGETS
 
-luajit$suffix ./generator.lua gcc "internal noimstrv $TARGETS" glfw opengl3 opengl2 sdl2 $CFLAGS
+luajit$suffix ./generator.lua gcc "$TARGETS" $CFLAGS

From 9ac8211a3dcd76e9b6f0ce9610d8c6cc51a8aab3 Mon Sep 17 00:00:00 2001
From: gucio321 <73652197+gucio321@users.noreply.github.com>
Date: Mon, 17 Apr 2023 17:13:38 +0200
Subject: [PATCH 5/5] generator: add help page

---
 generator/generator.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/generator/generator.sh b/generator/generator.sh
index cc92ac5..bafb063 100755
--- a/generator/generator.sh
+++ b/generator/generator.sh
@@ -25,6 +25,17 @@ POSITIONAL_ARGS=()
 TARGETS="internal noimstrv"
 CFLAGS="glfw opengl3 opengl2 sdl2"
 
+help() {
+        cat <<EOF
+Usage of generator.sh:
+   -t --target    specify which imgui features should be generated
+                  (default: $TARGETS)
+   -c --cflags    specify additional gcc flags
+                  (default: $CFLAGS
+   -h --help      show this message and exit
+EOF
+}
+
 while [[ $# -gt 0 ]]; do
   case $1 in
     -c|--cflags)
@@ -37,8 +48,13 @@ while [[ $# -gt 0 ]]; do
       shift # past argument
       shift # past value
       ;;
+    -h|--help)
+      help
+      exit 0
+      ;;
     -*|--*)
       echo "Unknown option $1"
+      help
       exit 1
       ;;
     *)