Avoid tabs in C output.

Signed-off-by: Wilson Snyder <[email protected]>

include/verilated_vcd_c.cpp

@@ -325,7 +325,7 @@ void VerilatedVcd::printQuad(vluint64_t n) {
 
 void VerilatedVcd::printTime(vluint64_t timeui) {
     // VCD file format specification does not allow non-integers for timestamps
-    // Dinotrace doesn't mind, but Cadence vvision seems to choke
+    // Dinotrace doesn't mind, but Cadence Vision seems to choke
     if (VL_UNLIKELY(timeui < m_timeLastDump)) {
         timeui = m_timeLastDump;
         static VL_THREAD_LOCAL bool backTime = false;

src/V3File.cpp

@@ -587,25 +587,6 @@ V3OutFormatter::V3OutFormatter(const string& filename, V3OutFormatter::Language
 
 //----------------------------------------------------------------------
 
-const char* V3OutFormatter::indentStr(int num) {
-    // Indent the specified number of spaces.  Use tabs as possible.
-    static char str[MAXSPACE+20];
-    char* cp = str;
-    if (num>MAXSPACE) num = MAXSPACE;
-    if (m_lang!=LA_VERILOG && m_lang!=LA_XML) {  // verilogPrefixedTree doesn't want tabs
-        while (num>=8) {
-            *cp++ = '\t';
-            num -= 8;
-        }
-    }
-    while (num>0) {
-        *cp++ = ' ';
-        num --;
-    }
-    *cp++ = '\0';
-    return (str);
-}
-
 const string V3OutFormatter::indentSpaces(int num) {
     // Indent the specified number of spaces.  Use spaces.
     static char str[MAXSPACE+20];
@@ -639,6 +620,8 @@ int V3OutFormatter::endLevels(const char *strg) {
         const char* cp = strg;
         while (isspace(*cp)) cp++;
         switch (*cp) {
+        case '\0':  // End of string... No need for whitespace before it
+            return (0);
         case '\n':  // Newlines.. No need for whitespace before it
             return (0);
         case '#':  // Preproc directive
@@ -680,7 +663,7 @@ int V3OutFormatter::endLevels(const char *strg) {
 
 void V3OutFormatter::puts(const char *strg) {
     if (m_prependIndent) {
-        putsNoTracking(indentStr(endLevels(strg)));
+        putsNoTracking(indentSpaces(endLevels(strg)));
         m_prependIndent = false;
     }
     bool wordstart = true;
@@ -695,7 +678,7 @@ void V3OutFormatter::puts(const char *strg) {
                 m_prependIndent = true;  // Add the indent later, may be a indentInc/indentDec called between now and then
             } else {
                 m_prependIndent = false;
-                putsNoTracking(indentStr(endLevels(cp+1)));
+                putsNoTracking(indentSpaces(endLevels(cp+1)));
             }
             break;
         case ' ':
@@ -808,7 +791,7 @@ void V3OutFormatter::putBreak() {
         //char s[1000]; sprintf(s, "{%d,%d}", m_column, m_parenVec.top()); putsNoTracking(s);
         if (exceededWidth()) {
             putcNoTracking('\n');
-            if (!m_parenVec.empty()) putsNoTracking(indentStr(m_parenVec.top()));
+            if (!m_parenVec.empty()) putsNoTracking(indentSpaces(m_parenVec.top()));
         }
     }
 }

src/V3File.h

@@ -129,7 +129,6 @@ private:
     int         m_bracketLevel;  // Intenting = { block, indicates number of {'s seen.
 
     int endLevels(const char* strg);
-    const char* indentStr(int num);
     void putcNoTracking(char chr);
 
 public: