Update Unary_op_req_lookahead to include '+' operators

Author: idodeclare

src/org/opensolaris/opengrok/analysis/sh/Sh.lexh

@@ -27,11 +27,11 @@ Identifier = [a-zA-Z_] [a-zA-Z0-9_]*
 Number = \$? [0-9]+\.[0-9]+| [0-9][0-9]* | [0][xX] [0-9a-fA-F]+
 
 /*
- * Rather than enumerate letters, just treat all hyphen-single-char as a
- * unary op. "req_lookahead" because an assertion is needed that it is followed
- * by non-word or end-of-line.
+ * Rather than enumerate letters, just treat all hyphen- or plus- with a
+ * single-char as a unary op. "req_lookahead" because an assertion is needed
+ * that it is followed by non-word or end-of-line.
  */
-Unary_op_req_lookahead = [\-]{Unary_op_char}
+Unary_op_req_lookahead = [\-\+]{Unary_op_char}
 Unary_op_char = [A-Za-z]
 
 Binary_op = [\-]("ef"|"nt"|"ot"|"eq"|"ge"|"gt"|"le"|"lt"|"ne"){WhspChar}

test/org/opensolaris/opengrok/analysis/sh/sample.sh

@@ -268,3 +268,4 @@ exit 0
 typeset -i vint
 vint=0xFFEF
 echo 'http://example.com'
+typeset +l -i vint2

test/org/opensolaris/opengrok/analysis/sh/sample_xref.html

@@ -276,5 +276,6 @@
 <a class="l" name="268" href="#268">268</a><b>typeset</b> -i <a href="/source/s?defs=vint" class="intelliWindow-symbol" data-definition-place="undefined-in-file">vint</a>
 <a class="l" name="269" href="#269">269</a><a href="/source/s?defs=vint" class="intelliWindow-symbol" data-definition-place="undefined-in-file">vint</a>=<span class="n">0xFFEF</span>
 <a class="hl" name="270" href="#270">270</a><b>echo</b> <span class="s">&apos;<a href="http://example.com">http://example.com</a>&apos;</span>
-<a class="l" name="271" href="#271">271</a></body>
+<a class="l" name="271" href="#271">271</a><b>typeset</b> +l -i <a href="/source/s?defs=vint2" class="intelliWindow-symbol" data-definition-place="undefined-in-file">vint2</a>
+<a class="l" name="272" href="#272">272</a></body>
 </html>

test/org/opensolaris/opengrok/analysis/sh/samplesymbols.txt

@@ -209,3 +209,4 @@ dev
 null
 vint
 vint
+vint2