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Add space between multiple strings while printing #2670

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156a017
Add space between strings in print
kmr-srbh Apr 26, 2024
f91e0c1
Fix mistake
kmr-srbh Apr 26, 2024
6fc0b6a
Tests: Update references
kmr-srbh Apr 26, 2024
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4 changes: 1 addition & 3 deletions src/libasr/codegen/asr_to_llvm.cpp
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Original file line numberDiff line numberDiff line change
Expand Up@@ -7981,9 +7981,7 @@ class ASRToLLVMVisitor : public ASR::BaseVisitor<ASRToLLVMVisitor>
for (size_t i=0; i<x.n_values; i++){
if (i != 0){
fmt.push_back("%s");
if (global_sep_space &&
!(ASRUtils::is_character(*ASRUtils::expr_type(x.m_values[i]))
&& ASRUtils::is_character(*ASRUtils::expr_type(x.m_values[i - 1])))){
if (global_sep_space){
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@ubaidskubaidskApr 26, 2024

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The way to fix this such that we print spaces when two consecutive arguments are strings in LPython and not print spaces for the same in LFortran, is to support this in AST->ASR Translation.

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@ubaidskubaidskApr 26, 2024

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You will need to figure out how to update the middle-ends of both lfortran and lpython such that both of them work as expected when two consecutive arguments are strings.

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@kmr-srbhkmr-srbhApr 27, 2024

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@Shaikh-Ubaid thanks for this! I will try to create a solution that works for both. 👍

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@ubaidskubaidskApr 27, 2024

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See if your solution works for both lpython and lfortran (test it locally on your system or send a PR to lfortran so it gets tested at the CI). If no run reference tests change for lfortran, then it works.

You can also test your current approach with lfortran. If it works currently, then I think its good.

args.push_back(sep);
} else{
sep_no_space = sep_no_space != nullptr ? sep_no_space : builder->CreateGlobalStringPtr("");
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2 changes: 1 addition & 1 deletion tests/reference/runtime-test_list_item_mixed_print-a3fd49f.json
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Expand Up@@ -6,7 +6,7 @@
"outfile": null,
"outfile_hash": null,
"stdout": "runtime-test_list_item_mixed_print-a3fd49f.stdout",
"stdout_hash": "9d9a68fea29f11320efb0764ce38ed3d4090f64457b0f1eb10251a2b",
"stdout_hash": "382a58aa2b426d46c2f22f343df9d99eb41653855b679300aade5102",
"stderr": null,
"stderr_hash": null,
"returncode": 0
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4 changes: 2 additions & 2 deletions tests/reference/runtime-test_list_item_mixed_print-a3fd49f.stdout
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@@ -1,5 +1,5 @@
Hello
This isLPython
Hello
This is LPython
1 2 3 ... 3 4 5
The first element is: 1
The middle element is: 3
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