From d17c6cb7e751f5a0c41dc3c759ab5d62ef034aa0 Mon Sep 17 00:00:00 2001
From: sebres <sebres@users.sourceforge.net>
Date: Tue, 10 Jan 2017 22:34:42 +0000
Subject: clock scan almost ready (currently test-case covered tokens only),
 test cases passed; todo - check other tokens from "clock.tcl"

---
 generic/tclClockFmt.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++-----
 generic/tclDate.h     | 16 ++++++++++-----
 2 files changed, 60 insertions(+), 10 deletions(-)

diff --git a/generic/tclClockFmt.c b/generic/tclClockFmt.c
index a10d05d..c8158cc 100644
--- a/generic/tclClockFmt.c
+++ b/generic/tclClockFmt.c
@@ -748,7 +748,7 @@ ClockScnToken_amPmInd_Proc(ClockFmtScnCmdArgs *opts,
     amPmObj[0] = ClockMCGet(opts, MCLIT_AM);
     amPmObj[1] = ClockMCGet(opts, MCLIT_PM);
 
-    if (amPmObj[0] == NULL || amPmObj == NULL) {
+    if (amPmObj[0] == NULL || amPmObj[1] == NULL) {
 	return TCL_ERROR;
     }
 
@@ -768,6 +768,44 @@ ClockScnToken_amPmInd_Proc(ClockFmtScnCmdArgs *opts,
 }
 
 static int 
+ClockScnToken_LocaleERA_Proc(ClockFmtScnCmdArgs *opts, 
+    DateInfo *info, ClockScanToken *tok)
+{
+    ClockClientData *dataPtr = opts->clientData;
+
+    int ret, val;
+    int minLen, maxLen;
+    Tcl_Obj *eraObj[6];
+
+    DetermineGreedySearchLen(opts, info, tok, &minLen, &maxLen);
+
+    eraObj[0] = ClockMCGet(opts, MCLIT_BCE);
+    eraObj[1] = ClockMCGet(opts, MCLIT_CE);
+    eraObj[2] = dataPtr->mcLiterals[MCLIT_BCE2];
+    eraObj[3] = dataPtr->mcLiterals[MCLIT_CE2];
+    eraObj[4] = dataPtr->mcLiterals[MCLIT_BCE3];
+    eraObj[5] = dataPtr->mcLiterals[MCLIT_CE3];
+
+    if (eraObj[0] == NULL || eraObj[1] == NULL) {
+	return TCL_ERROR;
+    }
+
+    ret = ObjListSearch(opts, info, &val, eraObj, 6,
+	minLen, maxLen);
+    if (ret != TCL_OK) {
+	return ret; 
+    }
+
+    if (val & 1) {
+	yydate.era = CE;
+    } else {
+	yydate.era = BCE;
+    }
+
+    return TCL_OK;
+}
+
+static int 
 ClockScnToken_LocaleListMatcher_Proc(ClockFmtScnCmdArgs *opts, 
     DateInfo *info, ClockScanToken *tok)
 {
@@ -782,7 +820,9 @@ ClockScnToken_LocaleListMatcher_Proc(ClockFmtScnCmdArgs *opts,
 	return ret;
     }
 
-    *(time_t *)(((char *)info) + tok->map->offs) = val;
+    if (tok->map->offs > 0) {
+	*(time_t *)(((char *)info) + tok->map->offs) = val;
+    }
 
     return TCL_OK;
 }
@@ -931,9 +971,14 @@ static const char *ScnSTokenWrapMapIndex[2] = {
 };
 
 static const char *ScnETokenMapIndex = 
-    "";
+    "Ey";
 static ClockScanTokenMap ScnETokenMap[] = {
-    {0, 0, 0}
+    /* %EE */
+    {CTOKT_PARSER, 0, 0, 0, 0, TclOffset(DateInfo, date.year),
+	ClockScnToken_LocaleERA_Proc, (void *)MCLIT_LOCALE_NUMERALS},
+    /* %Ey */
+    {CTOKT_PARSER, 0, 0, 0, 0, 0, /* currently no capture, parse only token */
+	ClockScnToken_LocaleListMatcher_Proc, (void *)MCLIT_LOCALE_NUMERALS},
 };
 static const char *ScnETokenWrapMapIndex[2] = {
     "",
@@ -1450,7 +1495,6 @@ ClockScan(
 			}
 		    }
 		}
-		yydate.era = CE;
 	    }
 	}
 
diff --git a/generic/tclDate.h b/generic/tclDate.h
index e78d4f8..020fa64 100644
--- a/generic/tclDate.h
+++ b/generic/tclDate.h
@@ -58,8 +58,8 @@
 typedef enum ClockLiteral {
     LIT__NIL,
     LIT__DEFAULT_FORMAT,
-    LIT_SYSTEM,		LIT_CURRENT,
-    LIT_BCE,		LIT_C,			LIT_CE,
+    LIT_SYSTEM,		LIT_CURRENT,		LIT_C,
+    LIT_BCE,		LIT_CE,
     LIT_DAYOFMONTH,	LIT_DAYOFWEEK,		LIT_DAYOFYEAR,
     LIT_ERA,		LIT_GMT,		LIT_GREGORIAN,
     LIT_INTEGER_VALUE_TOO_LARGE,
@@ -80,8 +80,8 @@ typedef enum ClockLiteral {
 #define CLOCK_LITERAL_ARRAY(litarr) static const char *const litarr[] = { \
     "", \
     "%a %b %d %H:%M:%S %Z %Y", \
-    "system",		"current", \
-    "BCE",		"C",			"CE", \
+    "system",		"current",		"C", \
+    "BCE",		"CE", \
     "dayOfMonth",	"dayOfWeek",		"dayOfYear", \
     "era",		":GMT",			"gregorian", \
     "integer value too large to represent", \
@@ -107,6 +107,9 @@ typedef enum ClockMsgCtLiteral {
     MCLIT_MONTHS_FULL,	MCLIT_MONTHS_ABBREV,
     MCLIT_DAYS_OF_WEEK_FULL,  MCLIT_DAYS_OF_WEEK_ABBREV,
     MCLIT_AM,  MCLIT_PM,
+    MCLIT_BCE,	 MCLIT_CE,
+    MCLIT_BCE2,	 MCLIT_CE2,
+    MCLIT_BCE3,	 MCLIT_CE3,
     MCLIT_LOCALE_NUMERALS,
     MCLIT__END
 } ClockMsgCtLiteral;
@@ -115,7 +118,10 @@ typedef enum ClockMsgCtLiteral {
     pref "", \
     pref "MONTHS_FULL", pref "MONTHS_ABBREV", \
     pref "DAYS_OF_WEEK_FULL", pref "DAYS_OF_WEEK_ABBREV", \
-    pref "AM", pref "PM", \
+    pref "AM",	   pref "PM", \
+    pref "BCE",	   pref "CE", \
+    pref "b.c.e.", pref "c.e.", \
+    pref "b.c.",   pref "a.d.", \
     pref "LOCALE_NUMERALS", \
 }
 
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