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[PATCH v16 04/14] ref-filter: introduce handler function for each atom

From
Karthik Nayak <karthik.188@gmail.com>
Date
Sep 5, 2015, 18:52 UTC
Message-ID
<1441479135-5285-5-git-send-email-Karthik.188@gmail.com>
In-Reply-To
<1441479135-5285-1-git-send-email-Karthik.188@gmail.com>

Introduce a handler function for each atom, which is called when the atom is processed in show_ref_array_item().

In this context make append_atom() as the default handler function and extract quote_formatting() out of append_atom(). Bump this to the top.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
---
 ref-filter.c | 54 ++++++++++++++++++++++++++++++------------------------
 1 file changed, 30 insertions(+), 24 deletions(-)
diff --git a/ref-filter.c b/ref-filter.c
index 432cea0..a993216 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -69,6 +69,7 @@ struct ref_formatting_state {
 
 struct atom_value {
 	const char *s;
+	void (*handler)(struct atom_value *atomv, struct ref_formatting_state *state);
 	unsigned long ul; /* used for sorting when not FIELD_STR */
 };
 
@@ -141,6 +142,32 @@ int parse_ref_filter_atom(const char *atom, const char *ep)
 	return at;
 }
 
+static void quote_formatting(struct strbuf *s, const char *str, int quote_style)
+{
+	switch (quote_style) {
+	case QUOTE_NONE:
+		strbuf_addstr(s, str);
+		break;
+	case QUOTE_SHELL:
+		sq_quote_buf(s, str);
+		break;
+	case QUOTE_PERL:
+		perl_quote_buf(s, str);
+		break;
+	case QUOTE_PYTHON:
+		python_quote_buf(s, str);
+		break;
+	case QUOTE_TCL:
+		tcl_quote_buf(s, str);
+		break;
+	}
+}
+
+static void append_atom(struct atom_value *v, struct ref_formatting_state *state)
+{
+	quote_formatting(&state->stack->output, v->s, state->quote_style);
+}
+
 static void push_stack_element(struct ref_formatting_stack **stack)
 {
 	struct ref_formatting_stack *s = xcalloc(1, sizeof(struct ref_formatting_stack));
@@ -662,6 +689,8 @@ static void populate_value(struct ref_array_item *ref)
 		const char *formatp;
 		struct branch *branch = NULL;
 
+		v->handler = append_atom;
+
 		if (*name == '*') {
 			deref = 1;
 			name++;
@@ -1228,29 +1257,6 @@ void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array)
 	qsort(array->items, array->nr, sizeof(struct ref_array_item *), compare_refs);
 }
 
-static void append_atom(struct atom_value *v, struct ref_formatting_state *state)
-{
-	struct strbuf *s = &state->stack->output;
-
-	switch (state->quote_style) {
-	case QUOTE_NONE:
-		strbuf_addstr(s, v->s);
-		break;
-	case QUOTE_SHELL:
-		sq_quote_buf(s, v->s);
-		break;
-	case QUOTE_PERL:
-		perl_quote_buf(s, v->s);
-		break;
-	case QUOTE_PYTHON:
-		python_quote_buf(s, v->s);
-		break;
-	case QUOTE_TCL:
-		tcl_quote_buf(s, v->s);
-		break;
-	}
-}
-
 static int hex1(char ch)
 {
 	if ('0' <= ch && ch <= '9')
@@ -1307,7 +1313,7 @@ void show_ref_array_item(struct ref_array_item *info, const char *format, int qu
 		if (cp < sp)
 			append_literal(cp, sp, &state);
 		get_ref_atom_value(info, parse_ref_filter_atom(sp + 2, ep), &atomv);
-		append_atom(atomv, &state);
+		atomv->handler(atomv, &state);
 	}
 	if (*cp) {
 		sp = cp + strlen(cp);
-- 
2.5.1
Previous: Karthik NayakNext: Karthik Nayak
Message 5 of 30 in “port tag.c to use ref-filter APIs”
  1. 00/14 port tag.c to use ref-filter APIsKarthik Nayak, Sep 5, 2015
  2. 01/14 ref-filter: move `struct atom_value` to ref-filter.cKarthik Nayak, Sep 5, 2015
  3. 02/14 ref-filter: introduce ref_formatting_state and ref_formatting_stackKarthik Nayak, Sep 5, 2015
  4. 03/14 utf8: add function to align a string into given strbufKarthik Nayak, Sep 5, 2015
  5. 04/14 ref-filter: introduce handler function for each atomKarthik Nayak, Sep 5, 2015
  6. 05/14 ref-filter: introduce match_atom_name()Karthik Nayak, Sep 5, 2015
  7. Eric SunshineSep 6, 2015
  8. Karthik NayakSep 7, 2015
  9. 06/14 ref-filter: implement an `align` atomKarthik Nayak, Sep 5, 2015
  10. Eric SunshineSep 6, 2015
  11. Karthik NayakSep 7, 2015
  12. 07/14 ref-filter: add option to filter out tags, branches and remotesKarthik Nayak, Sep 5, 2015
  13. 08/14 ref-filter: add support for %(contents:lines=X)Karthik Nayak, Sep 5, 2015
  14. 09/14 ref-filter: add support to sort by versionKarthik Nayak, Sep 5, 2015
  15. 10/14 ref-filter: add option to match literal patternKarthik Nayak, Sep 5, 2015
  16. 11/14 tag.c: use 'ref-filter' data structuresKarthik Nayak, Sep 5, 2015
  17. 12/14 tag.c: use 'ref-filter' APIsKarthik Nayak, Sep 5, 2015
  18. 13/14 tag.c: implement '--format' optionKarthik Nayak, Sep 5, 2015
  19. 14/14 tag.c: implement '--merged' and '--no-merged' optionsKarthik Nayak, Sep 5, 2015
  20. Matthieu MoySep 6, 2015
  21. Karthik NayakSep 6, 2015
  22. Junio C HamanoSep 7, 2015
  23. Matthieu MoySep 7, 2015
  24. Karthik NayakSep 7, 2015
  25. Matthieu MoySep 7, 2015
  26. Karthik NayakSep 8, 2015
  27. Junio C HamanoSep 8, 2015
  28. Karthik NayakSep 9, 2015
  29. Junio C HamanoSep 9, 2015
  30. Junio C HamanoSep 8, 2015

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