Added support for missing field names in libraries.

- Closes #32
- Reported on SnapEda libs

CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - iBoM output: file name patterns are allowed for the `netlist_file` option.
 - File name patterns: %F is the name of the source file without extension, but
   with the path.
+### Fixed
+- Now we support missing field names in schematic library entries.
 
 ## [0.8.1] - 2020-12-09
 ### Added

kibot/kicad/v5_sch.py

@@ -16,7 +16,7 @@ from .config import KiConf, un_quote
 from ..gs import GS
 from ..misc import (W_BADPOLI, W_POLICOORDS, W_BADSQUARE, W_BADCIRCLE, W_BADARC, W_BADTEXT, W_BADPIN, W_BADCOMP, W_BADDRAW,
                     W_UNKDCM, W_UNKAR, W_ARNOPATH, W_ARNOREF, W_MISCFLD, W_EXTRASPC, W_NOLIB, W_INCPOS, W_NOANNO, W_MISSLIB,
-                    W_MISSDCM, W_MISSCMP)
+                    W_MISSDCM, W_MISSCMP, W_MISFLDNAME)
 from .. import log
 
 logger = log.get_logger(__name__)
@@ -139,8 +139,11 @@ class LibComponentField(object):
             field.name = gs[9][1:-1]
         else:
             if field.number > 3:
-                raise SchLibError('Missing component field name', line, f)
-            field.name = ['Reference', 'Value', 'Footprint', 'Datasheet'][field.number]
+                logger.warning(W_MISFLDNAME + 'Missing component field name ({} line {})'.format(lib_name, f.line))
+                # KiCad falls-back to `FieldN`
+                field.name = 'Field'+str(field.number)
+            else:
+                field.name = ['Reference', 'Value', 'Footprint', 'Datasheet'][field.number]
         return field
 
     def write(self, f):

kibot/misc.py

@@ -156,6 +156,7 @@ W_MISSDCM = '(W042) '
 W_MISSCMP = '(W043) '
 W_VARSCH = '(W044) '
 W_WRONGPASTE = '(W045) '
+W_MISFLDNAME = '(W046) '
 
 
 class Rect(object):

tests/board_samples/kicad_5/l1.lib

@@ -28,6 +28,8 @@ F0 "#SYM_CAUTION" 0 150 50 H I C CNN
 F1 "SYM_CAUTION" 0 -175 50 H I C CNN
 F2 "Tedy:Symbol_Caution_Type2_FSilkS_Small" 100 -250 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
+# No field name, KiCad assigns Field4
+F4 "Hi!" 0 0 50 H I C CNN
 DRAW
 A 0 35 16 1616 184 0 0 0 N -15 40 15 40
 C 0 -46 10 0 0 0 F

tests/test_plot/test_print_sch.py

@@ -131,18 +131,18 @@ def test_print_sch_variant_ni_2():
     ctx.clean_up()
 
 
-def test_sch_missing():
+def test_sch_missing_1():
     """ R1 exists in l1.lib, but the lib isn't specified.
         R2 is bogus, completely missing """
     prj = 'missing'
-    ctx = context.TestContextSCH('test_sch_missing', prj, 'sch_no_inductors_1', PDF_DIR)
+    ctx = context.TestContextSCH('test_sch_missing_1', prj, 'sch_no_inductors_1', PDF_DIR)
     ctx.run()
     o_name = os.path.join(NI_DIR, prj+'.sch')
     ctx.expect_out_file(o_name)
     ctx.search_err("Component .?Resistor.? doesn't specify its library")
     ctx.search_err("Missing component .?l1:FooBar.?")
     ctx.search_err("Missing component(.*)Resistor", invert=True)
-    ctx.search_err(r"Found 2 unique warning/s \(3 total\)")
+    ctx.search_err(r"Found 3 unique warning/s \(4 total\)")
     ctx.clean_up()
 
 
@@ -150,14 +150,14 @@ def test_sch_missing_filtered():
     """ R1 exists in l1.lib, but the lib isn't specified.
         R2 is bogus, completely missing """
     prj = 'missing'
-    ctx = context.TestContextSCH('test_sch_missing', prj, 'sch_no_inductors_1_filtered', PDF_DIR)
+    ctx = context.TestContextSCH('test_sch_missing_filtered', prj, 'sch_no_inductors_1_filtered', PDF_DIR)
     ctx.run()
     o_name = os.path.join(NI_DIR, prj+'.sch')
     ctx.expect_out_file(o_name)
     ctx.search_err("Component .?Resistor.? doesn't specify its library")
     ctx.search_err("Missing component .?l1:FooBar.?", invert=True)
     ctx.search_err("Missing component(.*)Resistor", invert=True)
-    ctx.search_err(r"Found 1 unique warning/s \(3 total, 2 filtered\)")
+    ctx.search_err(r"Found 2 unique warning/s \(4 total, 2 filtered\)")
     ctx.clean_up()
 
 

tests/test_plot/test_sch_errors.py

@@ -61,8 +61,9 @@ def test_sch_errors_l3():
     setup_ctx('l3', 'Malformed component field')
 
 
-def test_sch_errors_l4():
-    setup_ctx('l4', 'Missing component field name')
+# Now we support it:
+# def test_sch_errors_l4():
+#     setup_ctx('l4', 'Missing component field name')
 
 
 def test_sch_errors_l5():