Package: emacs;
Reported by: lu4nx <lx <at> shellcodes.org>
Date: Thu, 14 Jan 2016 06:06:02 UTC
Severity: wishlist
Tags: patch
Done: Eli Zaretskii <eliz <at> gnu.org>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: lu4nx <lx <at> shellcodes.org> To: 22370 <at> debbugs.gnu.org Cc: lu4nx <lx <at> shellcodes.org> Subject: bug#22370: [PATCH] Initial support for Go Language in 'etags' Date: Thu, 14 Jan 2016 13:27:48 +0800
* lib-src/etags.c <Go_suffixes>: New variable.
(lang_names): Add an entry for Go
(Go_functions): Add new function.
* test/manual/etags/ETAGS.good_6: Add TAGS content for Go
* test/manual/etags/Makefile:
(GOSRC): Add new variable.
(SRCS): Add an entry for Go.
---
lib-src/etags.c | 73 +++++++++++++++++++++++++++++++++++++++
test/manual/etags/ETAGS.good_6 | 15 ++++++++
test/manual/etags/Makefile | 3 +-
test/manual/etags/go-src/test.go | 11 ++++++
test/manual/etags/go-src/test1.go | 34 ++++++++++++++++++
5 files changed, 135 insertions(+), 1 deletion(-)
create mode 100644 test/manual/etags/go-src/test.go
create mode 100644 test/manual/etags/go-src/test1.go
diff --git a/lib-src/etags.c b/lib-src/etags.c
index 2192627..5320686 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -354,6 +354,7 @@ static void Cstar_entries (FILE *);
static void Erlang_functions (FILE *);
static void Forth_words (FILE *);
static void Fortran_functions (FILE *);
+static void Go_functions (FILE *);
static void HTML_labels (FILE *);
static void Lisp_functions (FILE *);
static void Lua_functions (FILE *);
@@ -641,6 +642,10 @@ static const char *Fortran_suffixes [] =
static const char Fortran_help [] =
"In Fortran code, functions, subroutines and block data are tags.";
+static const char *Go_suffixes [] = {"go", NULL};
+static const char Go_help [] =
+ "In Go code, functions, interfaces and packages.";
+
static const char *HTML_suffixes [] =
{ "htm", "html", "shtml", NULL };
static const char HTML_help [] =
@@ -794,6 +799,7 @@ static language lang_names [] =
{ "erlang", Erlang_help, Erlang_functions, Erlang_suffixes },
{ "forth", Forth_help, Forth_words, Forth_suffixes },
{ "fortran", Fortran_help, Fortran_functions, Fortran_suffixes },
+ { "go", Go_help, Go_functions, Go_suffixes },
{ "html", HTML_help, HTML_labels, HTML_suffixes },
{ "java", Cjava_help, Cjava_entries, Cjava_suffixes },
{ "lisp", Lisp_help, Lisp_functions, Lisp_suffixes },
@@ -4210,6 +4216,73 @@ Fortran_functions (FILE *inf)
/*
+ * Go language support
+ * Idea by Xi Lu <lx <at> shellcodes.org>. (2016)
+ */
+static void
+Go_functions(FILE *inf)
+{
+ char *cp, *name;
+
+ LOOP_ON_INPUT_LINES(inf, lb, cp)
+ {
+ cp = skip_spaces (cp);
+
+ if (LOOKING_AT (cp, "package"))
+ {
+ name = cp;
+ while (!notinname (*cp) && *cp != '\0')
+ cp++;
+ make_tag (name, cp - name, false, lb.buffer,
+ cp - lb.buffer + 1, lineno, linecharno);
+ }
+ else if (LOOKING_AT (cp, "func"))
+ {
+ /* Go implementation of interface, such as:
+ func (n *Integer) Add(m Integer) ...
+ skip `(n *Integer)` part.
+ */
+ if (*cp == '(')
+ {
+ while (*cp != ')')
+ cp++;
+ cp = skip_spaces (cp+1);
+ }
+
+ if (*cp)
+ {
+ name = cp;
+
+ while (!notinname (*cp))
+ cp++;
+
+ make_tag (name, cp - name, true, lb.buffer,
+ cp - lb.buffer + 1, lineno, linecharno);
+ }
+ }
+ else if (members && LOOKING_AT (cp, "type"))
+ {
+ name = cp;
+
+ /* Ignore similar to the following:
+ type (
+ A
+ )
+ */
+ if (*cp == '(')
+ return;
+
+ while (!notinname (*cp) && *cp != '\0')
+ cp++;
+
+ make_tag (name, cp - name, false, lb.buffer,
+ cp - lb.buffer + 1, lineno, linecharno);
+ }
+ }
+}
+
+
+/*
* Ada parsing
* Original code by
* Philippe Waroquiers (1998)
diff --git a/test/manual/etags/ETAGS.good_6 b/test/manual/etags/ETAGS.good_6
index 39522db..3c53a8b 100644
--- a/test/manual/etags/ETAGS.good_6
+++ b/test/manual/etags/ETAGS.good_6
@@ -5406,3 +5406,18 @@ tex-src/nonewline.tex,0
php-src/sendmail.php,0
a-src/empty.zz,0
+
+test.go,48
+package main1,0
+func say(5,28
+func main(9,72
+
+test1.go,172
+package main1,0
+type plus 5,28
+type str 9,65
+type intNumber 13,99
+func (s str) PrintAdd(17,136
+func (n intNumber) PrintAdd(21,189
+func test(25,248
+func main(29,285
diff --git a/test/manual/etags/Makefile b/test/manual/etags/Makefile
index 4d9f358..81ee7a7 100644
--- a/test/manual/etags/Makefile
+++ b/test/manual/etags/Makefile
@@ -11,6 +11,7 @@ ELSRC=$(addprefix ./el-src/,TAGTEST.EL emacs/lisp/progmodes/etags.el)
ERLSRC=$(addprefix ./erl-src/,gs_dialog.erl)
FORTHSRC=$(addprefix ./forth-src/,test-forth.fth)
FSRC=$(addprefix ./f-src/,entry.for entry.strange_suffix entry.strange)
+GOSRC=$(addprefix ./go-src/,test.go test1.go)
HTMLSRC=$(addprefix ./html-src/,softwarelibero.html index.shtml algrthms.html software.html)
#JAVASRC=$(addprefix ./java-src/, )
LUASRC=$(addprefix ./lua-src/,allegro.lua test.lua)
@@ -27,7 +28,7 @@ RBSRC=$(addprefix ./ruby-src/,test.rb test1.ruby)
TEXSRC=$(addprefix ./tex-src/,testenv.tex gzip.texi texinfo.tex nonewline.tex)
YSRC=$(addprefix ./y-src/,parse.y parse.c atest.y cccp.c cccp.y)
SRCS=${ADASRC} ${ASRC} ${CSRC} ${CPSRC} ${ELSRC} ${ERLSRC} ${FSRC}\
- ${FORTHSRC} ${HTMLSRC} ${JAVASRC} ${LUASRC} ${MAKESRC} ${OBJCSRC}\
+ ${FORTHSRC} ${GOSRC} ${HTMLSRC} ${JAVASRC} ${LUASRC} ${MAKESRC} ${OBJCSRC}\
${OBJCPPSRC} ${PASSRC} ${PHPSRC} ${PERLSRC} ${PSSRC} ${PROLSRC} ${PYTSRC}\
${RBSRC} ${TEXSRC} ${YSRC}
NONSRCS=./f-src/entry.strange ./erl-src/lists.erl ./cp-src/clheir.hpp.gz
diff --git a/test/manual/etags/go-src/test.go b/test/manual/etags/go-src/test.go
new file mode 100644
index 0000000..6aea26e
--- /dev/null
+++ b/test/manual/etags/go-src/test.go
@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func say(msg string) {
+ fmt.Println(msg)
+}
+
+func main() {
+ say("Hello, Emacs!")
+}
diff --git a/test/manual/etags/go-src/test1.go b/test/manual/etags/go-src/test1.go
new file mode 100644
index 0000000..6d1efaa
--- /dev/null
+++ b/test/manual/etags/go-src/test1.go
@@ -0,0 +1,34 @@
+package main
+
+import "fmt"
+
+type plus interface {
+ PrintAdd()
+}
+
+type str struct {
+ a, b string
+}
+
+type intNumber struct {
+ a, b int
+}
+
+func (s str) PrintAdd() {
+ fmt.Println(s.a + s.b)
+}
+
+func (n intNumber) PrintAdd() {
+ fmt.Println(n.a + n.b)
+}
+
+func test(p plus) {
+ p.PrintAdd()
+}
+
+func main() {
+ s := str{a: "Hello,", b: "Emacs!"}
+ number := intNumber{a: 1, b: 2}
+ test(number)
+ test(s)
+}
--
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