From 92b80bdba589672b99820a90ad2624d89f555ef1 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Mon, 22 May 2023 10:30:13 -0400
Subject: lang: Support languages that speak the units before a numerical value

Previously, it was hardcoded to the english convention of units-last, so
"100%" would be voiced as "one hundred percent".  This adds a new
language flag that makes the units be voiced first, ie "100%" will be
voiced as "percent one hundred".

So far only the Chinese-traditional and Chinese-simplified languages
utilize this feature (taken from an old ticket, FS#10340) but I'm sure
others would want this feature too.

Change-Id: Idf825ec9299dc0ed09921cf67aec61b1ab262fc6
---
 apps/lang/chinese-simp.lang |  2 ++
 apps/lang/chinese-trad.lang |  2 ++
 apps/language.c             | 13 ++++++++++---
 apps/language.h             |  2 ++
 apps/talk.c                 |  6 +++++-
 tools/genlang               |  4 ++++
 6 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/apps/lang/chinese-simp.lang b/apps/lang/chinese-simp.lang
index 3d1d0ecaa3..b7702ee3c7 100644
--- a/apps/lang/chinese-simp.lang
+++ b/apps/lang/chinese-simp.lang
@@ -13,6 +13,8 @@
 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 # KIND, either express or implied.
 #
+# LANGUAGE_UNITS_FIRST
+#
 # Simplified Chinese language file, translated by:
 # - Ye Wei
 # - Xinlu Huang
diff --git a/apps/lang/chinese-trad.lang b/apps/lang/chinese-trad.lang
index 02e14645e0..e7ee7ae607 100644
--- a/apps/lang/chinese-trad.lang
+++ b/apps/lang/chinese-trad.lang
@@ -13,6 +13,8 @@
 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 # KIND, either express or implied.
 #
+# LANGUAGE_UNITS_FIRST
+#
 # Traditional Chinese language file, translated by:
 # - Wenbin Leo
 # - Xinlu Huang
diff --git a/apps/language.c b/apps/language.c
index 1ad1d5c829..d177303d89 100644
--- a/apps/language.c
+++ b/apps/language.c
@@ -37,7 +37,9 @@
 /* See tools/genlang (TODO: Use common include for both) */
 #define LANGUAGE_COOKIE   0x1a
 #define LANGUAGE_VERSION  0x06
-#define LANGUAGE_FLAG_RTL 0x01
+
+#define LANGUAGE_FLAG_RTL         0x01
+#define LANGUAGE_FLAG_UNITS_FIRST 0x02
 
 #define HEADER_SIZE 4
 #define SUBHEADER_SIZE 6
@@ -54,8 +56,8 @@ void lang_init(const unsigned char *builtin, unsigned char **dest, int count)
     }
 }
 
-int lang_load(const char *filename, const unsigned char *builtin, 
-              unsigned char **dest, unsigned char *buffer, 
+int lang_load(const char *filename, const unsigned char *builtin,
+              unsigned char **dest, unsigned char *buffer,
               unsigned int user_num, int max_lang_size,
               unsigned int max_id)
 {
@@ -143,3 +145,8 @@ int lang_is_rtl(void)
 {
     return (lang_options & LANGUAGE_FLAG_RTL) != 0;
 }
+
+int lang_units_first(void)
+{
+    return (lang_options & LANGUAGE_FLAG_UNITS_FIRST) != 0;
+}
diff --git a/apps/language.h b/apps/language.h
index cbfa7e2c1d..85fa7f6efa 100644
--- a/apps/language.h
+++ b/apps/language.h
@@ -37,4 +37,6 @@ int lang_english_to_id(const char *english);
 
 /* returns whether the loaded language is a right-to-left language */
 int lang_is_rtl(void);
+/* returns whether the loaded language needs units spoken before the value */
+int lang_units_first(void);
 #endif
diff --git a/apps/talk.c b/apps/talk.c
index 2ef7fea84d..5d6e7ac0b6 100644
--- a/apps/talk.c
+++ b/apps/talk.c
@@ -35,6 +35,7 @@
 #include "voice_thread.h"
 #include "audio.h"
 #include "lang.h"
+#include "language.h"
 #include "talk.h"
 #include "metadata.h"
 /*#define LOGF_ENABLE*/
@@ -1419,8 +1420,11 @@ int talk_value_decimal(long n, int unit, int decimals, bool enqueue)
         return 0;
     }
 
+    if (lang_units_first())
+        talk_id(unit_id, true); /* say the unit, if any */
     talk_number(n, enqueue); /* say the number */
-    talk_id(unit_id, true); /* say the unit, if any */
+    if (!lang_units_first())
+        talk_id(unit_id, true); /* say the unit, if any */
 
     return 0;
 }
diff --git a/tools/genlang b/tools/genlang
index 4f7386890d..abff3e8e18 100755
--- a/tools/genlang
+++ b/tools/genlang
@@ -16,6 +16,7 @@ my $LANGUAGE_COOKIE   = 0x1a;
 my $VOICE_COOKIE      = 0x9a;
 my $LANGUAGE_VERSION  = 0x06;
 my $LANGUAGE_FLAG_RTL = 0x01;
+my $LANGUAGE_FLAG_UNITS_FIRST = 0x02;
 
 my $HEADER_SIZE       = 4;
 my $SUBHEADER_SIZE    = 6;
@@ -372,6 +373,9 @@ while(<LANG>) {
         if ($_ =~ /LANGUAGE_IS_RTL/) {
             $langoptions |= $LANGUAGE_FLAG_RTL;
         }
+        if ($_ =~ /LANGUAGE_UNITS_FIRST/) {
+            $langoptions |= $LANGUAGE_FLAG_UNITS_FIRST;
+        }
 
         if ($header and $sortfile) {
             print($_);
-- 
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