Anno
2025
4 letters
Thu, March 20
残片纸堆

Error Running a .ps1 Script

Sometimes Windows policies block the execution of PS1 scripts, such as for portable VSCode or Python plugins. To adjust the policy, use the following commands in an administrator terminal. First, query the current policy. Then, use the command to set the policy. After setting, query again to verify the change.

Letter №35Read full note →
Tue, March 4

struct.pack fmt Documentation

This reference covers Python's struct.pack format strings for hexadecimal protocols. The first character specifies byte order and alignment (e.g., '<' little-endian, '>' big-endian, '!' network order). Type characters map C types to Python types with fixed sizes (e.g., 'B' unsigned char, 'i' int, 'f' float, 's' string with length prefix). Other symbols include 'x' for padding and numbers for repetition. Common combinations and notes on range validation, platform differences, and string handling are included.

Letter №34Read full note →
Tue, February 25

Browse HTTP files on a local server

Globally install http-server via Node.js, then navigate to the folder containing the HTML file and use the command.

Letter №33Read full note →
Fri, January 3

docker login ghcr.io

The user notes that it appears to require a certain input, but in reality it's a username and GitHub Access Token, which is frustrating.

Letter №32Read full note →
Anno
2024
6 letters
Thu, December 26

2024 · Still Settling

The author reflects on the first half of the year, which was spent studying GUIX and NetX and perfecting a DC source product that has shipped steadily. After building a blog, their thoughts became traceable. Dissatisfied with existing Modbus libraries, they spent half a year creating their own, aiming to surpass all others. They transitioned entirely to VS Code for ARM development, Node.js, and Python projects. Their growth has been gradual, writing 19 technical articles this year. Socially, they feel less engaged. Life has been isolated since moving to company dorms, with few enjoyable outings. Future plans include more alone time and self-care.

Letter №28Read full note →
Mon, December 2

Add a Space Between Chinese and English with Regular Expressions

Documents should follow formatting guidelines, specifically adding spaces between Chinese and English text. The popular Chinese copywriting guidelines by sparanoid emphasize this, with a humorous remark about the importance of spaces. To avoid manual checking, regular expressions are provided to automatically insert spaces between Chinese and English characters.

Letter №27Read full note →
Sat, November 30

sizeof() on a DSP

The author caught a leader's mistake: DSP architecture has 16-bit bytes, causing different struct alignment and sizeof() results compared to ARM. The leader insists on manual loops instead of standard functions like memset() and memcpy(), which leads to issues when porting software to ARM chips, especially with GCC -Os optimization (though AC6 works fine). Using standard library functions (sizeof, memset, etc.) would avoid problems as they operate on bytes. Company project requirements are ignored, but the author carefully uses standard libraries in their own open-source projects to enhance compatibility.

Letter №26Read full note →
Mon, November 25

Using LLVM clang-format in Dev-C++

The user records how to configure LLVM clang-format after forgetting the setup, noting to place the .clang-format file in the project root, set the tool path to the executable, and specify the working directory.

Letter №25Read full note →
Fri, November 8
碎碎念

Follow feed verification

A verification message confirms a feed belongs to a user and invites others to try the next-generation information browser Follow.is.

Letter №24Read full note →
Mon, November 4

Google Human Verification Redirect

The Header Editor extension for browsers like Edge, Chrome, and Firefox can redirect Google's human verification (CAPTCHA) to a domestic one. To do this, import the rule from the URL https://azurezeng.github.io/static/HE-GoogleRedirect.json in the extension's import/export settings. Once active, the extension will redirect all Google CAPTCHAs to the domestic version.

Letter №23Read full note →