Replace invalid chars

bash-ini-parser do not support all the valid chars ini key files support.

Allow to replace them with valid ones using an external function defined
with REPLACE_FUNCTION

t/Makefile.am

@@ -1,4 +1,4 @@
 TEST_LOG_DRIVER = env AM_TAP_AWK='$(AWK)' $(SHELL) \
                   $(top_srcdir)/build-aux/tap-driver.sh
-TESTS = t0001-whitespace.sh t0002-invalid.sh t0003-sections.sh t0004-comments.sh
+TESTS = t0001-whitespace.sh t0002-invalid.sh t0003-sections.sh t0004-comments.sh t0005-invalid-chars.sh
 EXTRA_DIST = $(TESTS)

t/t0005-invalid-chars.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+test_description="replace invalid chars"
+
+. setup.sh
+
+DIR_TEST=$SHARNESS_TEST_DIRECTORY/t0005
+
+#replace function
+function replace_chars() { 
+  if [[ $i =~ .*=.* ]]
+  then
+    local key=$(echo $1 | sed 's/\(.*\)=.*/\1/;s/-/_/g')
+    local value=$(echo $1 | sed 's/.*=\(.*\)/\1/')
+    echo "$key=$value"
+  else
+    echo $1
+  fi
+}
+#export function to be avaliable on bash-ini-parser script
+export -f replace_chars
+#define var to use function inside bash-ini-parser
+export REPLACE_FUNCTION=replace_chars
+
+test_expect_success "Replace invalid chars" "
+    export COVERAGE_NAME=comments_parser
+    cp ../.simplecov .
+
+    cfg_parser $DIR_TEST/invalid.ini
+    cfg_writer > invalid.out
+    diff $DIR_TEST/invalid.out.correct invalid.out
+"
+
+test_done

t/t0005/invalid.ini

@@ -0,0 +1,9 @@
+[sec1]
+var-1=foo
+var2=hoge
+var3=hoge#bar
+var4="#hello #bye #chao"
+[sec2]
+var2=foo
+var-4="123#456"
+var5=234#456

t/t0005/invalid.out.correct

@@ -0,0 +1,9 @@
+[sec1]
+var_1="foo"
+var2="hoge"
+var3="hoge#bar"
+var4="#hello #bye #chao"
+[sec2]
+var2="foo"
+var_4="123#456"
+var5="234#456"