Move number-to-string functions to libs

Marlin/src/core/utility.cpp

@@ -48,280 +48,13 @@ void safe_delay(millis_t ms) {
 
 #endif // EEPROM_SETTINGS || SD_FIRMWARE_UPDATE
 
-#if ANY(ULTRA_LCD, DEBUG_LEVELING_FEATURE, EXTENSIBLE_UI)
-
-  char conv[8] = { 0 };
-
-  #define DIGIT(n) ('0' + (n))
-  #define DIGIMOD(n, f) DIGIT((n)/(f) % 10)
-  #define RJDIGIT(n, f) ((n) >= (f) ? DIGIMOD(n, f) : ' ')
-  #define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-'))
-
-  // Convert a full-range unsigned 8bit int to a percentage
-  char* ui8tostr4pct(const uint8_t i) {
-    const uint8_t n = ui8_to_percent(i);
-    conv[3] = RJDIGIT(n, 100);
-    conv[4] = RJDIGIT(n, 10);
-    conv[5] = DIGIMOD(n, 1);
-    conv[6] = '%';
-    return &conv[3];
-  }
-
-  // Convert unsigned 8bit int to string 123 format
-  char* ui8tostr3(const uint8_t i) {
-    conv[4] = RJDIGIT(i, 100);
-    conv[5] = RJDIGIT(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[4];
-  }
-
-  // Convert signed 8bit int to rj string with 123 or -12 format
-  char* i8tostr3(const int8_t x) {
-    int xx = x;
-    conv[4] = MINUSOR(xx, RJDIGIT(xx, 100));
-    conv[5] = RJDIGIT(xx, 10);
-    conv[6] = DIGIMOD(xx, 1);
-    return &conv[4];
-  }
-
-  // Convert unsigned 16bit int to string 123 format
-  char* ui16tostr3(const uint16_t xx) {
-    conv[4] = RJDIGIT(xx, 100);
-    conv[5] = RJDIGIT(xx, 10);
-    conv[6] = DIGIMOD(xx, 1);
-    return &conv[4];
-  }
-
-  // Convert unsigned 16bit int to string 1234 format
-  char* ui16tostr4(const uint16_t xx) {
-    conv[3] = RJDIGIT(xx, 1000);
-    conv[4] = RJDIGIT(xx, 100);
-    conv[5] = RJDIGIT(xx, 10);
-    conv[6] = DIGIMOD(xx, 1);
-    return &conv[3];
-  }
-
-  // Convert signed 16bit int to rj string with 123 or -12 format
-  char* i16tostr3(const int16_t x) {
-    int xx = x;
-    conv[4] = MINUSOR(xx, RJDIGIT(xx, 100));
-    conv[5] = RJDIGIT(xx, 10);
-    conv[6] = DIGIMOD(xx, 1);
-    return &conv[4];
-  }
-
-  // Convert unsigned 16bit int to lj string with 123 format
-  char* i16tostr3left(const int16_t i) {
-    char *str = &conv[6];
-    *str = DIGIMOD(i, 1);
-    if (i >= 10) {
-      *(--str) = DIGIMOD(i, 10);
-      if (i >= 100)
-        *(--str) = DIGIMOD(i, 100);
-    }
-    return str;
-  }
-
-  // Convert signed 16bit int to rj string with 1234, _123, -123, _-12, or __-1 format
-  char* i16tostr4sign(const int16_t i) {
-    const bool neg = i < 0;
-    const int ii = neg ? -i : i;
-    if (i >= 1000) {
-      conv[3] = DIGIMOD(ii, 1000);
-      conv[4] = DIGIMOD(ii, 100);
-      conv[5] = DIGIMOD(ii, 10);
-    }
-    else if (ii >= 100) {
-      conv[3] = neg ? '-' : ' ';
-      conv[4] = DIGIMOD(ii, 100);
-      conv[5] = DIGIMOD(ii, 10);
-    }
-    else {
-      conv[3] = ' ';
-      conv[4] = ' ';
-      if (ii >= 10) {
-        conv[4] = neg ? '-' : ' ';
-        conv[5] = DIGIMOD(ii, 10);
-      }
-      else {
-        conv[5] = neg ? '-' : ' ';
-      }
-    }
-    conv[6] = DIGIMOD(ii, 1);
-    return &conv[3];
-  }
-
-  // Convert unsigned float to string with 1.23 format
-  char* ftostr12ns(const float &f) {
-    const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = '.';
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[3];
-  }
-
-  // Convert signed float to fixed-length string with 12.34 / -2.34 format or 123.45 / -23.45 format
-  char* ftostr42_52(const float &f) {
-    if (f <= -10 || f >= 100) return ftostr52(f); // need more digits
-    long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
-    conv[2] = (f >= 0 && f < 10) ? ' ' : MINUSOR(i, DIGIMOD(i, 1000));
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = '.';
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[2];
-  }
-
-  // Convert signed float to fixed-length string with 023.45 / -23.45 format
-  char* ftostr52(const float &f) {
-    long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
-    conv[1] = MINUSOR(i, DIGIMOD(i, 10000));
-    conv[2] = DIGIMOD(i, 1000);
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = '.';
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[1];
-  }
-
-  #if ENABLED(LCD_DECIMAL_SMALL_XY)
-
-    // Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format
-    char* ftostr4sign(const float &f) {
-      const int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
-      if (!WITHIN(i, -99, 999)) return i16tostr4sign((int)f);
-      const bool neg = i < 0;
-      const int ii = neg ? -i : i;
-      conv[3] = neg ? '-' : (ii >= 100 ? DIGIMOD(ii, 100) : ' ');
-      conv[4] = DIGIMOD(ii, 10);
-      conv[5] = '.';
-      conv[6] = DIGIMOD(ii, 1);
-      return &conv[3];
-    }
-
-  #endif // LCD_DECIMAL_SMALL_XY
-
-  // Convert float to fixed-length string with +123.4 / -123.4 format
-  char* ftostr41sign(const float &f) {
-    int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
-    conv[1] = MINUSOR(i, '+');
-    conv[2] = DIGIMOD(i, 1000);
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = DIGIMOD(i, 10);
-    conv[5] = '.';
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[1];
-  }
-
-  // Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
-  char* ftostr43sign(const float &f, char plus/*=' '*/) {
-    long i = (f * 10000 + (f < 0 ? -5: 5)) / 10;
-    conv[1] = i ? MINUSOR(i, plus) : ' ';
-    conv[2] = DIGIMOD(i, 1000);
-    conv[3] = '.';
-    conv[4] = DIGIMOD(i, 100);
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[1];
-  }
-
-  // Convert signed float to string (5 digit) with -1.2345 / _0.0000 / +1.2345 format
-  char* ftostr54sign(const float &f, char plus/*=' '*/) {
-    long i = (f * 100000 + (f < 0 ? -5: 5)) / 10;
-    conv[0] = i ? MINUSOR(i, plus) : ' ';
-    conv[1] = DIGIMOD(i, 10000);
-    conv[2] = '.';
-    conv[3] = DIGIMOD(i, 1000);
-    conv[4] = DIGIMOD(i, 100);
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[0];
-  }
-
-  // Convert unsigned float to rj string with 12345 format
-  char* ftostr5rj(const float &f) {
-    const long i = ((f < 0 ? -f : f) * 10 + 5) / 10;
-    conv[2] = RJDIGIT(i, 10000);
-    conv[3] = RJDIGIT(i, 1000);
-    conv[4] = RJDIGIT(i, 100);
-    conv[5] = RJDIGIT(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return &conv[2];
-  }
-
-  // Convert signed float to string with +1234.5 format
-  char* ftostr51sign(const float &f) {
-    long i = (f * 100 + (f < 0 ? -5: 5)) / 10;
-    conv[0] = MINUSOR(i, '+');
-    conv[1] = DIGIMOD(i, 10000);
-    conv[2] = DIGIMOD(i, 1000);
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = DIGIMOD(i, 10);
-    conv[5] = '.';
-    conv[6] = DIGIMOD(i, 1);
-    return conv;
-  }
-
-  // Convert signed float to string with +123.45 format
-  char* ftostr52sign(const float &f) {
-    long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
-    conv[0] = MINUSOR(i, '+');
-    conv[1] = DIGIMOD(i, 10000);
-    conv[2] = DIGIMOD(i, 1000);
-    conv[3] = DIGIMOD(i, 100);
-    conv[4] = '.';
-    conv[5] = DIGIMOD(i, 10);
-    conv[6] = DIGIMOD(i, 1);
-    return conv;
-  }
-
-  // Convert unsigned float to string with 1234.5 format omitting trailing zeros
-  char* ftostr51rj(const float &f) {
-    const long i = ((f < 0 ? -f : f) * 100 + 5) / 10;
-    conv[0] = ' ';
-    conv[1] = RJDIGIT(i, 10000);
-    conv[2] = RJDIGIT(i, 1000);
-    conv[3] = RJDIGIT(i, 100);
-    conv[4] = DIGIMOD(i, 10);
-    conv[5] = '.';
-    conv[6] = DIGIMOD(i, 1);
-    return conv;
-  }
-
-  // Convert signed float to space-padded string with -_23.4_ format
-  char* ftostr52sp(const float &f) {
-    long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
-    uint8_t dig;
-    conv[0] = MINUSOR(i, ' ');
-    conv[1] = RJDIGIT(i, 10000);
-    conv[2] = RJDIGIT(i, 1000);
-    conv[3] = DIGIMOD(i, 100);
-
-    if ((dig = i % 10)) {          // second digit after decimal point?
-      conv[4] = '.';
-      conv[5] = DIGIMOD(i, 10);
-      conv[6] = DIGIT(dig);
-    }
-    else {
-      if ((dig = (i / 10) % 10)) { // first digit after decimal point?
-        conv[4] = '.';
-        conv[5] = DIGIT(dig);
-      }
-      else                          // nothing after decimal point
-        conv[4] = conv[5] = ' ';
-      conv[6] = ' ';
-    }
-    return conv;
-  }
-
-#endif // ULTRA_LCD
-
 #if ENABLED(DEBUG_LEVELING_FEATURE)
 
   #include "../module/probe.h"
   #include "../module/motion.h"
   #include "../module/stepper.h"
+  #include "../module/stepper.h"
+  #include "../libs/numtostr.h"
   #include "../feature/bedlevel/bedlevel.h"
 
   void log_machine_info() {

Marlin/src/core/utility.h

@@ -53,78 +53,6 @@ inline void serial_delay(const millis_t ms) {
   FORCE_INLINE bool is_bitmap_set(uint16_t bits[16], const uint8_t x, const uint8_t y) { return TEST(bits[y], x); }
 #endif
 
-#if ANY(ULTRA_LCD, DEBUG_LEVELING_FEATURE, EXTENSIBLE_UI)
-
-  // Convert a full-range unsigned 8bit int to a percentage
-  char* ui8tostr4pct(const uint8_t i);
-
-  // Convert uint8_t to string with 123 format
-  char* ui8tostr3(const uint8_t x);
-
-  // Convert int8_t to string with 123 format
-  char* i8tostr3(const int8_t x);
-
-  // Convert uint16_t to string with 123 format
-  char* ui16tostr3(const uint16_t x);
-
-  // Convert uint16_t to string with 1234 format
-  char* ui16tostr4(const uint16_t x);
-
-  // Convert int16_t to string with 123 format
-  char* i16tostr3(const int16_t x);
-
-  // Convert unsigned int to lj string with 123 format
-  char* i16tostr3left(const int16_t xx);
-
-  // Convert signed int to rj string with _123, -123, _-12, or __-1 format
-  char* i16tostr4sign(const int16_t x);
-
-  // Convert unsigned float to string with 1.23 format
-  char* ftostr12ns(const float &x);
-
-  // Convert signed float to fixed-length string with 12.34 / -2.34 or 023.45 / -23.45 format
-  char* ftostr42_52(const float &x);
-
-  // Convert signed float to fixed-length string with 023.45 / -23.45 format
-  char* ftostr52(const float &x);
-
-  // Convert float to fixed-length string with +123.4 / -123.4 format
-  char* ftostr41sign(const float &x);
-
-  // Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
-  char* ftostr43sign(const float &x, char plus=' ');
-
-  // Convert signed float to string (5 digit) with -1.2345 / _0.0000 / +1.2345 format
-  char* ftostr54sign(const float &x, char plus=' ');
-
-  // Convert unsigned float to rj string with 12345 format
-  char* ftostr5rj(const float &x);
-
-  // Convert signed float to string with +1234.5 format
-  char* ftostr51sign(const float &x);
-
-  // Convert signed float to space-padded string with -_23.4_ format
-  char* ftostr52sp(const float &x);
-
-  // Convert signed float to string with +123.45 format
-  char* ftostr52sign(const float &x);
-
-  // Convert unsigned float to string with 1234.5 format omitting trailing zeros
-  char* ftostr51rj(const float &x);
-
-  // Convert float to rj string with 123 or -12 format
-  FORCE_INLINE char* ftostr3(const float &x) { return i16tostr3(int16_t(x + (x < 0 ? -0.5f : 0.5f))); }
-
-  #if ENABLED(LCD_DECIMAL_SMALL_XY)
-    // Convert float to rj string with 1234, _123, 12.3, _1.2, -123, _-12, or -1.2 format
-    char* ftostr4sign(const float &fx);
-  #else
-    // Convert float to rj string with 1234, _123, -123, __12, _-12, ___1, or __-1 format
-    FORCE_INLINE char* ftostr4sign(const float &x) { return i16tostr4sign(int16_t(x + (x < 0 ? -0.5f : 0.5f))); }
-  #endif
-
-#endif // ULTRA_LCD
-
 #if ENABLED(DEBUG_LEVELING_FEATURE)
   void log_machine_info();
 #else

Marlin/src/lcd/HD44780/ultralcd_HD44780.cpp

@@ -33,6 +33,7 @@
 
 #include "ultralcd_HD44780.h"
 #include "../ultralcd.h"
+#include "../../libs/numtostr.h"
 
 #include "../../sd/cardreader.h"
 #include "../../module/temperature.h"

Marlin/src/lcd/dogm/status_screen_DOGM.cpp

@@ -33,6 +33,7 @@
 #include "ultralcd_DOGM.h"
 #include "../ultralcd.h"
 #include "../lcdprint.h"
+#include "../../libs/numtostr.h"
 
 #include "../../module/motion.h"
 #include "../../module/temperature.h"

Marlin/src/lcd/dogm/ultralcd_DOGM.cpp

@@ -48,6 +48,7 @@
 
 #include "../lcdprint.h"
 #include "../fontutils.h"
+#include "../../libs/numtostr.h"
 #include "../ultralcd.h"
 
 #include "../../sd/cardreader.h"

Marlin/src/lcd/extensible_ui/ui_api.cpp

@@ -57,6 +57,7 @@
 
 #if ENABLED(PRINTCOUNTER)
   #include "../../core/utility.h"
+  #include "../../libs/numtostr.h"
 #endif
 
 #if DO_SWITCH_EXTRUDER || EITHER(SWITCHING_NOZZLE, PARKING_EXTRUDER)

Marlin/src/lcd/menu/menu.h

@@ -22,6 +22,7 @@
 #pragma once
 
 #include "../ultralcd.h"
+#include "../../libs/numtostr.h"
 #include "../../inc/MarlinConfig.h"
 
 #include "limits.h"

Marlin/src/libs/numtostr.cpp

@@ -0,0 +1,289 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "numtostr.h"
+#include "../core/utility.h"
+
+char conv[8] = { 0 };
+
+#define DIGIT(n) ('0' + (n))
+#define DIGIMOD(n, f) DIGIT((n)/(f) % 10)
+#define RJDIGIT(n, f) ((n) >= (f) ? DIGIMOD(n, f) : ' ')
+#define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-'))
+
+// Convert a full-range unsigned 8bit int to a percentage
+char* ui8tostr4pct(const uint8_t i) {
+  const uint8_t n = ui8_to_percent(i);
+  conv[3] = RJDIGIT(n, 100);
+  conv[4] = RJDIGIT(n, 10);
+  conv[5] = DIGIMOD(n, 1);
+  conv[6] = '%';
+  return &conv[3];
+}
+
+// Convert unsigned 8bit int to string 123 format
+char* ui8tostr3(const uint8_t i) {
+  conv[4] = RJDIGIT(i, 100);
+  conv[5] = RJDIGIT(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[4];
+}
+
+// Convert signed 8bit int to rj string with 123 or -12 format
+char* i8tostr3(const int8_t x) {
+  int xx = x;
+  conv[4] = MINUSOR(xx, RJDIGIT(xx, 100));
+  conv[5] = RJDIGIT(xx, 10);
+  conv[6] = DIGIMOD(xx, 1);
+  return &conv[4];
+}
+
+// Convert unsigned 16bit int to string 123 format
+char* ui16tostr3(const uint16_t xx) {
+  conv[4] = RJDIGIT(xx, 100);
+  conv[5] = RJDIGIT(xx, 10);
+  conv[6] = DIGIMOD(xx, 1);
+  return &conv[4];
+}
+
+// Convert unsigned 16bit int to string 1234 format
+char* ui16tostr4(const uint16_t xx) {
+  conv[3] = RJDIGIT(xx, 1000);
+  conv[4] = RJDIGIT(xx, 100);
+  conv[5] = RJDIGIT(xx, 10);
+  conv[6] = DIGIMOD(xx, 1);
+  return &conv[3];
+}
+
+// Convert signed 16bit int to rj string with 123 or -12 format
+char* i16tostr3(const int16_t x) {
+  int xx = x;
+  conv[4] = MINUSOR(xx, RJDIGIT(xx, 100));
+  conv[5] = RJDIGIT(xx, 10);
+  conv[6] = DIGIMOD(xx, 1);
+  return &conv[4];
+}
+
+// Convert unsigned 16bit int to lj string with 123 format
+char* i16tostr3left(const int16_t i) {
+  char *str = &conv[6];
+  *str = DIGIMOD(i, 1);
+  if (i >= 10) {
+    *(--str) = DIGIMOD(i, 10);
+    if (i >= 100)
+      *(--str) = DIGIMOD(i, 100);
+  }
+  return str;
+}
+
+// Convert signed 16bit int to rj string with 1234, _123, -123, _-12, or __-1 format
+char* i16tostr4sign(const int16_t i) {
+  const bool neg = i < 0;
+  const int ii = neg ? -i : i;
+  if (i >= 1000) {
+    conv[3] = DIGIMOD(ii, 1000);
+    conv[4] = DIGIMOD(ii, 100);
+    conv[5] = DIGIMOD(ii, 10);
+  }
+  else if (ii >= 100) {
+    conv[3] = neg ? '-' : ' ';
+    conv[4] = DIGIMOD(ii, 100);
+    conv[5] = DIGIMOD(ii, 10);
+  }
+  else {
+    conv[3] = ' ';
+    conv[4] = ' ';
+    if (ii >= 10) {
+      conv[4] = neg ? '-' : ' ';
+      conv[5] = DIGIMOD(ii, 10);
+    }
+    else {
+      conv[5] = neg ? '-' : ' ';
+    }
+  }
+  conv[6] = DIGIMOD(ii, 1);
+  return &conv[3];
+}
+
+// Convert unsigned float to string with 1.23 format
+char* ftostr12ns(const float &f) {
+  const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = '.';
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[3];
+}
+
+// Convert signed float to fixed-length string with 12.34 / -2.34 format or 123.45 / -23.45 format
+char* ftostr42_52(const float &f) {
+  if (f <= -10 || f >= 100) return ftostr52(f); // need more digits
+  long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
+  conv[2] = (f >= 0 && f < 10) ? ' ' : MINUSOR(i, DIGIMOD(i, 1000));
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = '.';
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[2];
+}
+
+// Convert signed float to fixed-length string with 023.45 / -23.45 format
+char* ftostr52(const float &f) {
+  long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
+  conv[1] = MINUSOR(i, DIGIMOD(i, 10000));
+  conv[2] = DIGIMOD(i, 1000);
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = '.';
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[1];
+}
+
+#if ENABLED(LCD_DECIMAL_SMALL_XY)
+
+  // Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format
+  char* ftostr4sign(const float &f) {
+    const int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
+    if (!WITHIN(i, -99, 999)) return i16tostr4sign((int)f);
+    const bool neg = i < 0;
+    const int ii = neg ? -i : i;
+    conv[3] = neg ? '-' : (ii >= 100 ? DIGIMOD(ii, 100) : ' ');
+    conv[4] = DIGIMOD(ii, 10);
+    conv[5] = '.';
+    conv[6] = DIGIMOD(ii, 1);
+    return &conv[3];
+  }
+
+#endif // LCD_DECIMAL_SMALL_XY
+
+// Convert float to fixed-length string with +123.4 / -123.4 format
+char* ftostr41sign(const float &f) {
+  int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
+  conv[1] = MINUSOR(i, '+');
+  conv[2] = DIGIMOD(i, 1000);
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = DIGIMOD(i, 10);
+  conv[5] = '.';
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[1];
+}
+
+// Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
+char* ftostr43sign(const float &f, char plus/*=' '*/) {
+  long i = (f * 10000 + (f < 0 ? -5: 5)) / 10;
+  conv[1] = i ? MINUSOR(i, plus) : ' ';
+  conv[2] = DIGIMOD(i, 1000);
+  conv[3] = '.';
+  conv[4] = DIGIMOD(i, 100);
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[1];
+}
+
+// Convert signed float to string (5 digit) with -1.2345 / _0.0000 / +1.2345 format
+char* ftostr54sign(const float &f, char plus/*=' '*/) {
+  long i = (f * 100000 + (f < 0 ? -5: 5)) / 10;
+  conv[0] = i ? MINUSOR(i, plus) : ' ';
+  conv[1] = DIGIMOD(i, 10000);
+  conv[2] = '.';
+  conv[3] = DIGIMOD(i, 1000);
+  conv[4] = DIGIMOD(i, 100);
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[0];
+}
+
+// Convert unsigned float to rj string with 12345 format
+char* ftostr5rj(const float &f) {
+  const long i = ((f < 0 ? -f : f) * 10 + 5) / 10;
+  conv[2] = RJDIGIT(i, 10000);
+  conv[3] = RJDIGIT(i, 1000);
+  conv[4] = RJDIGIT(i, 100);
+  conv[5] = RJDIGIT(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return &conv[2];
+}
+
+// Convert signed float to string with +1234.5 format
+char* ftostr51sign(const float &f) {
+  long i = (f * 100 + (f < 0 ? -5: 5)) / 10;
+  conv[0] = MINUSOR(i, '+');
+  conv[1] = DIGIMOD(i, 10000);
+  conv[2] = DIGIMOD(i, 1000);
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = DIGIMOD(i, 10);
+  conv[5] = '.';
+  conv[6] = DIGIMOD(i, 1);
+  return conv;
+}
+
+// Convert signed float to string with +123.45 format
+char* ftostr52sign(const float &f) {
+  long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
+  conv[0] = MINUSOR(i, '+');
+  conv[1] = DIGIMOD(i, 10000);
+  conv[2] = DIGIMOD(i, 1000);
+  conv[3] = DIGIMOD(i, 100);
+  conv[4] = '.';
+  conv[5] = DIGIMOD(i, 10);
+  conv[6] = DIGIMOD(i, 1);
+  return conv;
+}
+
+// Convert unsigned float to string with 1234.5 format omitting trailing zeros
+char* ftostr51rj(const float &f) {
+  const long i = ((f < 0 ? -f : f) * 100 + 5) / 10;
+  conv[0] = ' ';
+  conv[1] = RJDIGIT(i, 10000);
+  conv[2] = RJDIGIT(i, 1000);
+  conv[3] = RJDIGIT(i, 100);
+  conv[4] = DIGIMOD(i, 10);
+  conv[5] = '.';
+  conv[6] = DIGIMOD(i, 1);
+  return conv;
+}
+
+// Convert signed float to space-padded string with -_23.4_ format
+char* ftostr52sp(const float &f) {
+  long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
+  uint8_t dig;
+  conv[0] = MINUSOR(i, ' ');
+  conv[1] = RJDIGIT(i, 10000);
+  conv[2] = RJDIGIT(i, 1000);
+  conv[3] = DIGIMOD(i, 100);
+
+  if ((dig = i % 10)) {          // second digit after decimal point?
+    conv[4] = '.';
+    conv[5] = DIGIMOD(i, 10);
+    conv[6] = DIGIT(dig);
+  }
+  else {
+    if ((dig = (i / 10) % 10)) { // first digit after decimal point?
+      conv[4] = '.';
+      conv[5] = DIGIT(dig);
+    }
+    else                          // nothing after decimal point
+      conv[4] = conv[5] = ' ';
+    conv[6] = ' ';
+  }
+  return conv;
+}

Marlin/src/libs/numtostr.h

@@ -0,0 +1,92 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../inc/MarlinConfigPre.h"
+
+// Convert a full-range unsigned 8bit int to a percentage
+char* ui8tostr4pct(const uint8_t i);
+
+// Convert uint8_t to string with 123 format
+char* ui8tostr3(const uint8_t x);
+
+// Convert int8_t to string with 123 format
+char* i8tostr3(const int8_t x);
+
+// Convert uint16_t to string with 123 format
+char* ui16tostr3(const uint16_t x);
+
+// Convert uint16_t to string with 1234 format
+char* ui16tostr4(const uint16_t x);
+
+// Convert int16_t to string with 123 format
+char* i16tostr3(const int16_t x);
+
+// Convert unsigned int to lj string with 123 format
+char* i16tostr3left(const int16_t xx);
+
+// Convert signed int to rj string with _123, -123, _-12, or __-1 format
+char* i16tostr4sign(const int16_t x);
+
+// Convert unsigned float to string with 1.23 format
+char* ftostr12ns(const float &x);
+
+// Convert signed float to fixed-length string with 12.34 / -2.34 or 023.45 / -23.45 format
+char* ftostr42_52(const float &x);
+
+// Convert signed float to fixed-length string with 023.45 / -23.45 format
+char* ftostr52(const float &x);
+
+// Convert float to fixed-length string with +123.4 / -123.4 format
+char* ftostr41sign(const float &x);
+
+// Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
+char* ftostr43sign(const float &x, char plus=' ');
+
+// Convert signed float to string (5 digit) with -1.2345 / _0.0000 / +1.2345 format
+char* ftostr54sign(const float &x, char plus=' ');
+
+// Convert unsigned float to rj string with 12345 format
+char* ftostr5rj(const float &x);
+
+// Convert signed float to string with +1234.5 format
+char* ftostr51sign(const float &x);
+
+// Convert signed float to space-padded string with -_23.4_ format
+char* ftostr52sp(const float &x);
+
+// Convert signed float to string with +123.45 format
+char* ftostr52sign(const float &x);
+
+// Convert unsigned float to string with 1234.5 format omitting trailing zeros
+char* ftostr51rj(const float &x);
+
+// Convert float to rj string with 123 or -12 format
+FORCE_INLINE char* ftostr3(const float &x) { return i16tostr3(int16_t(x + (x < 0 ? -0.5f : 0.5f))); }
+
+#if ENABLED(LCD_DECIMAL_SMALL_XY)
+  // Convert float to rj string with 1234, _123, 12.3, _1.2, -123, _-12, or -1.2 format
+  char* ftostr4sign(const float &fx);
+#else
+  // Convert float to rj string with 1234, _123, -123, __12, _-12, ___1, or __-1 format
+  FORCE_INLINE char* ftostr4sign(const float &x) { return i16tostr4sign(int16_t(x + (x < 0 ? -0.5f : 0.5f))); }
+#endif